3DDDI       3D Device Dependent Interface (MS), "3D DDI"
3GL         3rd Generation Language
4GL         4th Generation Language
AA          Auto Answer (MODEM)
AAC         Authorization and Access Control (IETF)
AAD         Authorized AutoCAD Dealer
AAE         Allgemeine AnschalteErlaubnis
AAL         ATM Adaption Layer (ATM)
AARP        Appletalk Address Resolution Protocol
AAUI        Apple ???  Attachment Unit Interface (Ethernet)
ABATS       Automatic Bit Access Test System
ABC         Atanasoff-Berry-Computer
ABEL        Advanced Boolean Expression Language
ABI         Application Binary Interface (POE)
ABIOS       Advanced Basic Input Output System (IBM)
ABM         Asynchronous Balanced Mode
ABR         Available Bit Rate (ATM)
AC          Access Control (Token Ring)
ACAS        Application Control Architecture Services (DEC)
ACC         Area Communication Controller (Modacom)
ACC         Atari Competence Center
ACDI        Asynchronous Communications Device Interface (IBM, CM/2)
ACE         Advanced Computing Environment (Hersteller)
ACIA        Asynchronous Communications Interface Adapter
ACL         Access Control List (DCE, DFS)
ACL         Advanced CMOS Logic
ACL         Association for Computational Linguistics (Org., USA)
ACLF        Access Control List Facility (DCE)
ACM         Association for Computing Machinery (USA)
ACR         Attenuation to Crosstalk Radio (Netzkabel)
ACS         Advanced Communications System
ACS         Architekten, Computer, Systeme (Messe)
ACS         Australian Computer Science
ACSE        Association Control Service Element (OSI)
ACSNET      Academic Computing Services NETwork
ACTPU       ACTivate Physical Unit (SNA)
AD          Authorisierter Distributor (DEC)
ADA         Automatic Data Acquisitions
ADAPSO      Association of Data Processing Service Organisation (Org., USA)
ADB         A DeBugger (Unix)
ADB         Apple Desktop Bus
ADC         Analog to Digital Converter
ADC         Apple Distribution Center
ADCCP       Advanced Data Communications Control Procedure
ADD         Adapter Device Driver (OS/2)
ADF         Automatic Document Feeder
ADL         Adventure Description Language
ADM         Add-Drop-Multiplexer
ADMA        Area Division Multiple Access (Mobile Systems)
ADMD        ADministration Management Domain (X.400)
ADP         Administrative Data Processing
ADP         Advanced Data Processing
ADP         Automatic Data Processing
ADPS        Automatic Data Processing System
ADPCM       Adaptive Delta Pulse Code Modulation
ADS         Advanced Digital System
ADS         Auxilary Data System
ADSL        Asymmetric Digital Subscriber Loop [modulation]
ADSL        Asymmetric Digital Subscriber Line (Bell)
ADSP        Appletalk Data Stream Protocol
ADSU        ATM Data Service Unit
ADT         Abstract Data Type
ADT         Application Development Tools (IBM)
ADV         Automatisierte DatenVerarbeitung
ADVS        Automatisiertes DatenVerarbeitungsSystem
AE          Apple Events
AE          Application Entity / Environment / Execution / Engineering (APE)
AEA         American Electronics Association (Org.)
AEGIS       Advanced Electronic Guidance and Instrumentation System
AEI         Application Enabling Interface (IBM)
AEIMP       Apple Event Interprocess Messaging Protocol
AEOM        Apple Events Object Model
AES         Application Environment Specification
AES         Automatic Emulation Switching (Lexmark)
AETE        Apple Event Terminology Extension
AEUT        Apple Event User Terminology
AFAIC       As Far As I'm Concerned (DFUE-Slang)
AFAIK       As Far As I Know (DFUE-Slang)
AFE         Apple File Exchange
AFK         Away from Keyboard (DFUE-Slang)
AFP         Advanced Function Presentation (IBM)
AFP         Appletalk Filing Protocol (Banyan VINES)
AFPA        Advanced Function Printing Architecture (IBM)
AFPDS       Advanced Function Printing Data Stream (IBM)
AFT         Authenticated Firewall Traversal (IETF)
AFUU        Association Francaise des Utilisateurs d'Unix (Org., Frankreich)
AGC         Automatic Gain Control (Audio)
AGFMB       ArbeitsGemeinschaft Freier MailBoxen (Org.)
AHPCRC      Army High Performance Computing Research Center (Org., USA)
AI          Artificial Intelligence
AIA         Application Integration Architecture
AII         Active Input Interface (UNI, PMD, FDDI)
AIM         Alternate Input Method (OS/2)
AIM         Apple, IBM, Motorola [consortium]
AIN         Advanced Intelligent Network (IN)
AIP         ATM Interface Processor (ATM)
AIR         Automatic Image Refinement, (Canon), "A.I.R."
AIS         Alarm Indication Signal (UNI)
AITO        Association Internationale pour les Technologies Objets (Org.)
AIW         APPN Implementers Workshop (Org.)
AIX         Advanced Interactive eXecutive (IBM Unix)
ALC         Adaption Layer Controller (ATM)
ALGOL       ALGOrithmic Language
ALU         Arithmetic and Logic Unit
ALM         Appware Loadable Module (Novell)
ALM         Asychronous Line Module
ALM         Asynchronous Line Multiplexer
ALR         Advanced Logic Research, inc (Hersteller)
ALS         Adjacent Link Station (IBM)
AM          Active Matrix [LCD]
AMA         Automatic Message Accounting
AMACS       AMA Collection System
AMARC       AMA Recording Center
AMASE       AMA Standard Entry
AMAT        AMA Transmitter
AMATPS      AMA TeleProcessing System
AMD         Advanced MicroDevices (Hersteller)
AME         Advanced Modeling Extension (AutoCAD)
AMH         Automated Material Handling
AMI         Alternate Mark Inversion (ISDN)
AMI         American Megatrends Incorporation (Hersteller)
AMIC        Apple Memory-mapped I/o Controller
ANDF        Architecture Neutral Distributation Format
ANI         Automatic Number Identification
ANSI        American National Standard Institute (Org.)
ANTS        AT&T Novell Telephone Services, "A/NTS"
ANUML       Australian National University Meta Language, "ANU ML"
AOA         American Optometric Association (Org.)
AOCE        Apple Open Collaboration Environment
AOI         Active Output Interface (UNI, PMD, FDDI)
AOL         America OnLine (Netzwerk)
AOTC        Australian Overseas Telecommunications Corporation (Org.)
AOW         Asia and Oceania Workshop (OSI)
APAR        Authorized Program Analysis Report (IBM)
APC         Association for Progressive Communications (Org., Netzwerk)
APD         Additional Product Documentation
APDA        Apple Programmers and Developer Association (Org.)
APDU        Application Protocol Data Unit (OSI)
APE         APplication Engineering
APEX        Advanced Packet EXchange
APF         Advanced Printer Function (IBM, ADT)
API         Application Program Interface
APIC        Advanced Programmable Interrupt Controller (Intel)
APL         Algorithmic Programming Language
APLSF       A Programming Language with Shared Files (Carnegie-Mellon-Uni.)
APM         Advanced Power Management
APPC        Advanced Peer-to-Peer Communications
APPC        Application Program to Program Converter (IBM)
APPC        Advanced Program to Program Communication (IBM)
APPCM       Access Protection and Priority Control Mechanism (DQDB)
APPN        Advanced Peer to Peer Networking (IBM)
APSE        Ada Programming Support Environment
ARA         Apple[talk] Remote Access
ARB         Architecture Review Board (OpenGL, Hersteller, Org.)
ARCNET      Attached Resource Computer network, "ARCnet"
ARL         Access Rights List (Banyan VINES)
ARLL        Advanced Run-Length Limited encoding
ARM         Advanced RISC Machine (Acorn, Apple, VLSI)
ARM         Annotated [c++] Reference Manual
ARMS        Architecture for Reliable Managed Storage (Cheyenne)
AROM        Alterable Read Only Memory
ARP         Address Resolution Protocol (Internet, RFC 826)
ARPANET     Advanced Research Projects Agency NETwork (USA)
ARQ         Automatic Re-transmission reQuest (MODEM)
AS          Advanced Server (Windows, NT)
AS          Authentication Service (DCE)
ASA         American Standards Association (Org., ANSI, Vorlaeufer)
ASAP        As Soon As Possible (DFUE-Slang)
ASC         Accredited Standards Committee (Org., ANSI)
ASC         Automatic Contrast Selection (FAX)
ASCII       American Standard Code of Information Interchange
ASDSP       Application-Specific Digital Signal Processor
ASE         Active Storage Element (GigaB, IP-Router)
ASI         Asynchronous SCSI Interface
ASI         Automatic System Installation
ASIC        Application Specific Integrated Circuit
ASK         Akademische Software Kooperation (Org., Karlsruhe)
ASK         Amplitude Shift Keying
ASL         Adaptive Speed Leveling (US Robotics)
ASLT        Advanced Solid Logic Technology (Halbleiter)
ASMP        ASymmetrisches MultiProzessor [system]
ASN1        Abstract Syntax Notation One (OSI), "ASN.1"
ASP         Advanced Signal Processing
ASP         Appletalk Session Protocol
ASP         Association of Shareware Professionals (Org.)
ASPEN       Automatic System for Performance Evaluation of the Network
ASPI        Advanced SCSI Programmer Interface (Adaptec)
ASPIC       Advanced Programmable Interrupt Controller
ASTRAL      Alliance f. Strategic Token Ring Advancement a. Leadership (Hersteller)
AT          Advanced Technology
ATA         Advanced Technology Attachment
ATAPI       Advanced Technology Attachment Packet Interface
ATC         Address Translation Controller (ATM)
ATC         Automatic Transmission Control
ATDM        Asynchronous Time Division Multiplexer
ATE         Asynchronous Terminal Emulation (Banyan VINES)
ATE         ATM Terminating Equipment (SONET)
ATIP        Absolute Time In Pregroove (CD)
ATL         Adaptive Threshold Learning (Neuronale Netze)
ATM         Adobe Type Manager
ATM         Automatic Teller Machine
ATM         Asynchronous Transfer Mode
ATMS        Assumption based Truth Maintenance System (AI)
ATOB        ASCII TO Binary
ATOMM       Advanced super Thinlayer and high-Output Metal Media (Fuji)
ATP         Appletalk Transaction Protocol
ATP         Application Transaction Program (IBM, APPC)
ATP2        AppleTalk Phase 2
ATR         Answer To Reset
ATT         American Telephone and Telegraph, "AT&T"
AUC         AUthentication Center (Mobile Systems), "AuC"
AUI         Attachment Unit Interface (Ethernet)
AUI         Audible User Interface
AUP         Acceptable Use Policy (NFSNet)
AUT         Application Under Test
AUTODIN     AUTOmatic DIgital Network
AUTOVON     AUTOmatic VOice Network
AUX         Apple UniX, "A/UX"
AV          AudioVisual [macintosh] (Apple)
AVATAR      Advanced Video Attribute Terminal Assembler and Recreator
AVE         AutoCAD Visualization Extension
AVI         Audio Video Interleaved
AVL         Adelson, Veslkij und Laudis Baeume (Suchbaum Verfahren)
AWAC        Audio Waveform Amplifier and Converter (Apple)
AWG         American Wire Gauge (Kabel)
AWK         al Aho, peter Weinberger, brian Kernighan (Unix)
BAD         Broken As Designed (Slang)
BAM         Bidirectional Associative Memory (Neuronale Netze)
BAPT        BundesAmt fuer Post und Telefon (Org.)
BARRNET     Bay Area Regional Research NETwork (Netzwerk), "BARRNet"
BASH        Bourne-Again SHell (Unix)
BASIC       Beginner's All-purpose Symbolic Instruction Code
BB          BridgeBoard (Amiga)
BBL         Be Back Later (DFUE-Slang)
BBR         Back Bone Ring
BBS         Bulletin Board System
BCC         Blind Carbon Copy (DFUE)
BCC         Block Check Character
BCD         Binary Coded Decimal
BCDBS       Broadband Connectionless Data Bearer Service (ATM)
BCDIC       Binary Coded Decimal Interchange Code
BCF         Base station Control Function (Mobile Systems)
BCP         Basic Call Process (IN)
BCP         Binary Communications Protocol
BCP         Bridging Control Protocol (RFC 1638)
BCPL        Basic Combined Programming Language
BCS         Binary Compatibility Standard (Motorola)
BCS         British Computer Society (Org.)
BCS         Banking Communication Standard
BCSM        Basic Call Sate Modell (IN)
BCU         Bus Controller Unit
BDA         Borland Database Engine (Borland)
BDE         BetriebsDatenErfassung
BDF         Bitmap Description Format (Adobe)
BDOS        Basic Disk Operating System (CP/M)
BDSG        BundesDatenSchutzGesetz
BECN        Backward Explicit Congestion Notification (ATM)
BEEV        Bundesverband der Elektronik- und ElektroschrottVerwerter
BELLCORE    BELL COmmunications REsearch (Org.)
BER         Basic Encoding Rules (ASN.1)
BER         Bit Error Rate
BERT        Bit Error Rate Test
BEST        Borland Enhanced Support and Training
BEVU        Bundesvereinigung mittelstaendischer Elektro- und elektronikgeraete entsorgungs- und VerwertungsUnternehmen (Org.)
BGI         Borland Graphics Interface (Borland)
BGP         Border Gateway Protocol (RFC 1163/1164)
BHLI        Broadband High Layer Information, "B-HLI"
BHN         Bayerisches Hochschulnetz (Netzwerk)
BICI        Broadband Intercarrier Interface, "B-ICI"
BIDS        Borland International Data Structures
BIGFON      Breitbandiges Integriertes Glasfaser-Fernmelde-OrtsNetz
BIM         Broadband Interface Module
BIND        Berkely Internet Name Domain [software] (Unix)
BIOS        Basic Input Output System
BIP         Bit Interleaved Parity (SONET, ...)
BIPV        Bit Interleaved Parity Violation
BIS         Business Information System
BISDN       Broadband Integrated Services Digital Network, "B-ISDN"
BISP        Business Information System Program
BISSI       Broadband Inter-Switching System Interface, "B-ISSI"
BISYNC      Binary SYNchronous Communications (IBM)
BIT         Binary digIT
BITNET      Because It's Time NETwork (Netzwerk)
BIU         Bus Interface Unit
BIX         Byte Information eXchange
BK          Buero Kommunikation
BLAST       BLocked ASynchronous Transmission
BLLI        Broadband Low Layer Information, "B-LLI"
BLM         Bayerische Landeszentrale fuer neue Medien (Org.)
BLOB        Binary Large OBject
BMOS        Bipolar Metal Oxyd Semiconductor (IC)
BMS         Basic Mapping Support (CICS)
BMS         Broadcast Message Server (PCTE)
BMUG        Berkeley Macintosh User Group (Org.)
BNC         Bayonet Neill Concelman [connector]
BNC         Bayonet Nut Coupling ???
BND         BundesNachrichtenDienst
BNF         Baccus-Naur Form
BNP         Broadband Network Premises
BNU         Basic Networking Utilities (AT&T)
BOA         Basic Object Adapter
BOCA        Borland Object Component Architecture (Borland)
BOM         Begining of Message
BOT         Back On Topic (DFUE-Slang)
BOT         Beginning Of Tape
BOT         Build, Operate and Transfer (Netzwerke)
BPI         Bits Per Inch
BPL         Bytes Per Line
BPP         Bits Per Pixel
BPS         Bits Per Second
BPSK        Bi Phase Shift Keying [modulation]
BPU         Branch Processing Unit (CPU)
BRB         Be Right Back (DFUE-Slang)
BRIEF       Basic Reconfigurable Interactive Editing Facility
BRS         Big Red Switch
BS          Banded Signaling
BS          Base Station (Mobile Systems)
BSA         Business Software Alliance (Org., Hersteller)
BSAM        Basic Sequential Access Method
BSC         Base Station Controller (Mobile Systems)
BSC         Binary Synchronous Communications [protocol] (IBM)
BSCM        Binary Synchronous Communications Module
BSD         Berkeley System / Software Distribution (Hersteller)
BSI         Bentley Systems, Incorporated (Hersteller)
BSI         British Standards Institute (Org.)
BSI         Bundesamt fuer Sicherheit in der Informationstechnik (Org.)
BSP         Binary Space Partitioning
BSS         Block Started by Symbol (IBM, Assembler)
BSS         Broadband Switching System
BSSMAP      Base Station System Management Application Part (Mobile Systems)
BT          Bus Terminator
BTAM        Basic Tape Access Method (BS200)
BTAM        Basic Telecommunications Access Method (IBM)
BTL         Bell Telephone Laboratories
BTLB        Block Translation Look-aside Buffer (CPU)
BTOA        Binary TO ASCII
BTS         Base Tranceiver Station entities (Mobile Systems)
BTU         Basic Transmission Unit (IBM)
BTW         By The Way (DFUE-Slang)
BTX         BildschirmTeXt (Netzwerk, Datex-J)
BUI         Bus Interface Unit (DEC)
BVB         BundesVerband fuer Buero- und informationssysteme (Org.)
BVCP        Banyan VINES Control Protocol (RFC 1793)
BVIT        BundesVerband InformationsTechnologien [e.V.] (Org.)
BWBM        Bandwidth Balancing Mechanism (DQDB)
BZR         Bit Zone Recording (ROD)
BZT         Bundesamt fuer Zulassungen in der Telekommunikation (Org.)
CA          Certification Authority
CA          Computer Associates (Hersteller)
CAAD        Computer Aided Architectural Design
CABS        Carrier Access Billing System
CAC         Connection Admission Control
CAD         Computer Aided Design / Dispatch / Drafting
CADE        Computer Aided Document Engineering (Microstar)
CAE         Computer Aided Education
CAE         Computer Aided Engineering
CAE         Common Application Environment
CAI         Computer Aided Instruction
CAIS        Common APSE Interface Specification
CAL         Computer Aided Logistics
CALSS       Computer aided Acquisition and Logistics Support
CAM         Common Access Method (SCSI)
CAM         Computer Aided Manufacturing
CAMAC       Computer Automated Measurement And Control
CAMM        Computer Assisted Material Management
CAN         Controller Area Network
CAO         Computer Aided Office
CAP         Computer Aided Planning
CAP         Computer Aided Publishing
CAPI        Communication Application Program Interface (ISDN)
CAPP        Computer Aided Process Planning
CAQ         Computer Aided Quality [control]
CARCAS      Computer Aided aRchiving and Change Accounting System
CAS         Column Address Strobe (IC, DRAM)
CAS         Computerized Autodial System
CAS         Communicating Applications Specification (FAX)
CASE        Computer Aided Software Engineering
CAT         Common Authentication Technology (IETF, RFC 1511)
CAT         Computer Aided Technology (Messe)
CAT         Computer Aided Telephony
CAT         Computer Aided Testing
CAV         Constant Angular Velocity (CD)
CBCS        Computer Based Conversation System (BBS)
CBEMA       Computer & Business Equipment Manufacturers Association (Org.)
CBIOS       Compatibility Basic Input Output System (IBM)
CBMS        Connectionless Broadband Data Service
CBR         Constant Bit Rate
CBT         Canon Buffer Transmission (Fax)
CBT         Computer-Based Training
CBX         Computerized Branch eXchange
CC          Carbon Copy
CC          Cross Connector
CCAF        Call Control Agent Function (IN)
CCC         Chaos Computer Club (Org.)
CCC         Computer Control Center
CCD         Charge Coupled Device
CCF         Connection Control Function (IN)
CCFT        Cold Cathode Fluorescent Tube (LCD, Display)
CCIRN       Coordinating Committee of International Networks (Org.)
CCIS        Common Channel Interoffice Signaling (AT&T)
CCITT       Comite Consultatif International Telegraphique et Telephonique (Org.)
CCM         Change Configuration Management
CCNC        Common Channel Network Controller
CCNC        Computer / Communications Network Center
CCP         Command Console Processor (CP/M)
CCR         Commitment, Concurrency and Recovery (OSI)
CCRMA       Center for Computer Research in Music and Acoustics (Org., Stanford)
CCS         Common Command Set (SCSI)
CCS         Common Communications Support (IBM)
CCS7        Common Channel signaling System 7 (IN, Telekom)
CCSID       Coded Character Set IDentification (IBM)
CD          Carrier Detect (MODEM)
CD          Change Directory (DOS)
CD          Control Data (Hersteller)
CDA         Communications Decency Act (Internet, USA)
CDBS        Connectionless Data Bearer Service
CDC         Control Data Corporation (Hersteller)
CDDA        Compact Disk - Digital Audio, "CD-DA"
CDDI        Copper Distributed Data Interface
CDE         Common Desktop Environment
CDE         Compact Disk - Erasable, "CD-E"
CDE         Cooperative Development Environment (Oracle)
CDG         Compact Disk + Graphics, "CD+G"
CDI         Compact Disk - Interactive, "CD-I"
CDIF        CASE Data Interchange Format
CDMIDI      Compact Disk + Musical Instruments Digital Interface, "CD+MIDI"
CDMO        Compact Disk - Magneto Optical, "CD-MO"
CDPD        Cellular Digital Packet Data
CDR         Compact Disk - Recordable, "CD-R"
CDRA        Character Data Representation Architecture
CDRAM       Cached Dynamic Random Access Memory
CDROM       Compact Disk - Read Only Memory, "CD-ROM"
CDROMXA     Compact Disk - ROM / eXtended Architecture, "CD-ROM/XA"
CDS         Cell Directory Service (DCE)
CDV         Cell Delay Variation (UNI, ATM)
CDWO        Compact Disk - Write Once, "CD-WO"
CEBIT       welt CEntrum Buero Information Telekommunikation (Messe)
CEG         Continuous Edge Graphics (Grafik, IC) 
CEI         Connection Endpoint Identifier (UNI)
CELP        Code Excited Linear Prediction
CENELEC     Comite Europeen de Normalisation ELECtrotechnique (EG)
CEPAC       ??? (IC)
CEPT        Conference of European Postal and Telecommunications administrations (Org.)
CERFNET     California Educational and Research Federation NETwork (Netzwerk), "CERFNet"
CERT        Computer Emergency Response Team (DARPA)
CES         Circuit Emulation Service
CET         Central European Time (TZ)
CFD         Call For Diskussion (Internet)
CFD         Computational Fluid Dynamics [applications]
CFM         ConFiguration Management (FDDI)
CFV         Call For Vote (Internet), "CfV"
CGA         Colour Graphics Adapter
CGI         Common Gateway Interface (WWW)
CGI         Computer Graphics Interface
CHRP        Common Hardware Reference Platform (AIM)
CHS         Cylinder Head Sectors
CI          Coded Information
CIB         Computer Integrated Business
CIC         Carrier Identification Code
CIC         Coordination and Information Center (CSNET)
CICA        Center of Innovative Computer Applications (Org.)
CICS        Customer Information Control System (IBM)
CICSVS      Customer Information Control System / Virtual Storage (IBM), "CICS/VS"
CID         Configuration - Installation - Distribution (IBM)
CIDIR       Classless Internet DomaIn Routing [protocol]
CIL         Computer Integration Laboratories (Apple, IBM, Novell, Sun, ...)
CIM         Computer Integrated Manufacturing
CIP         Computer Integrated Processing
CIP         Computer-Investitions-Programm
CIR         Committed Information Rate (ATM)
CIRC        Cross Interleaved Reed-salomon Code (CD)
CIS         Card Information Structure / Space (PCMCIA)
CIS         Compuserve Information Systems (Netzwerk)
CISC        Complex Instruction Set Computer
CISPR       Comite International Special des Pertubations Radioelectriques (Org.)
CIVIC       Cyclone Integrated Video Interfaces Controller (Apple)
CIX         Commercial Internet eXchange
CLASS       Centralized Local Area Selective Signaling
CLASS       Custom Local Area Signaling Service
CLI         Call Level Interface (SAQ)
CLI         Command Line Interpreter / Interface
CLID        Calling Line IDentification
CLIM        Common LISP Interface Manager (CLOS)
CLL         ConnectionLess Layer (UNI, NNI, ATM)
CLNAP       Connectionaless Network Access Protocol (UNI, NNI, ATM)
CLNP        ConnectionLess Network Protocol (OSI)
CLOS        Common LISP Object System
CLP         Cell Loss Priority (UNI, ATM)
CLTP        ConnectionLess Transport Protocol (OSI)
CLUT        Color LookUp Table (VGA)
CLV         Constant Linear Velocity (CD)
CM2         Communication Manager /2 (IBM), "CM/2"
CMC         Common Messaging Calls [interface] (XAPIA)
CMC         Computer Mediated Communications
CMGS        Cyan Magenta Gelb Schwarz (Farbsystem, DTP)
CMI         Connection Manager Interface (IBM, SNA)
CMIP        Common Management Information Protocol (OSI, X.700)
CMIS        Common Management Information Service (OSI)
CMISE       Common Management Information Service Element
CMMU        Cache/Memory Management Unit
CMOL        CMIP Over LLC (OSI)
CMOS        Complementary-symmetry Metal-Oxide Semiconductor (IC)
CMOT        CMIP Over TCP (OSI, RFC 1189)
CMP         Cooperative Marketing Partner (DEC)
CMS         Color Management System
CMS         Conversational Monitor System (IBM, VME)
CMT         Connection ManagemenT (FDDI)
CMY         Cyan Magenta Yellow (Farbsystem, DTP)
CMYK        Cyan Magenta Yellow blacK (Farbsystem, DTP)
CN          Connection Management (Mobile Systems)
CNA         Communications Network Application
CNC         Computerized Numerical Control
CND         Caller Number Delivery (MODEM)
CNE         Certified Netware Engineers (Novell)
CNI         Common Network Interface
CNIDIR      Coalition for Networked Information DIRectories (Internet)
CNM         Communications Network Management
CNMA        Communications Network for Manufacturing Applications
CNMS        Cylink Network Management System
CNRCVUUCP   Compressed News ReCeive Via UUCP
CNS         Complimentary Network Service
COBOL       COmmon Business Orientated Language
COCOT       Customer Owned Coin Operated Telephone
CODASYSL    Conference On DAta Systems Languages
CODCF       Central Office Data Connecting Facility
CODE        Client/server Open Development Environment (Powersoft)
CODEC       COder - DECoder
COE         Central Office Equipment
COEES       COE Engineering System (COE)
COFF        Common Object File Format (Unix)
COLD        Computer Output on LaserDisk
COM         Component Object Model (OLE2)
COM         Computer Output on Microfilm
COMDEX      COMputer Dealer's EXposition (Messe)
COMTECH     COMputer TECHnologies (Messe)
CONCERT     Communications for North Carolina Education, Research and Technology (Netzwerk)
CONS        Connection-Oriented Networking Service
CONTAC      Central Office NeTwork ACcess
COOL        COBOL Object Orientated Language
COP         Character-Oriented Protocol
CORBA       Common Object Request Broker Architecture
COS         Corporation for Open Systems (OSI, User Group)
COSA        COmputerunterstuetzte SAchbearbeitung
COSE        Common Open Software Environment (HP, Sun, IBM, SCO, USL, Univel)
COSINE      Cooperation for OSI Networking in Europe (Org.)
COSMOS      COmputer System for Mainframe OperationS
COSS        Common Object Services Specification
COT         Central Office Terminal
COTS        Connection-Oriented Transport [layer] Service
CP          Control Point (IBM, SNA)
CPCS        Common Part Convergence Sublayer (ATM)
CPE         Customer Premise Equipment
CPH         Cost Per Hour
CPI         Characters Per Inch
CPI         Common Part Indicator (ATM)
CPI         Common Programming Interface (IBM)
CPI         Computer Private branch exchange Interface
CPIC        Common Programming Interface for Communications (IBM), "CPI/C"
CPIO        CoPy In/Out
CPL         Combined Programming Language
CPL         Conversational Programming Language (DEC)
CPM         Control Program for Microcomputers, "CP/M"
CPM         Cost Per Minute
CPM         Critical Path Method (Netzplantechnik)
CPN         Compuserve Packet Network (Netzwerk)
CPS         Characters Per Second
CPSI        Configurable PostScript Interpreter
CPSR        Computer Professionals for Social Responsibility (Org., USA)
CPU         Central Processing Unit
CR          Carriage Return
CRAM        Card Random Access Memory
CRAS        Cable Repair Administrative System
CRC         Cyclic Redundancy Check
CREN        Corporation for Research and Educational Networking (Netzwerk)
CRFVC       Connection Related Function Virtual Channel (UPC, UNI), "CRF(VC)"
CRFVP       Connection Related Function Virtual Path (UPC, UNI), "CRF(VP)"
CRI         Cray Research, Inc. (Hersteller)
CRIN        Centre de Recherche en Informatique de Nancy (Org.)
CRISC       Complex-Reduced Instruction Set Computer
CRISP       Complex-Reduced Instruction Set Processor
CRL         Certificate Revocation List
CRP         Common Reference Platform (PowerPC)
CRS         Cell Relay Service (UNI, ATM)
CRT         Cathode Ray Tube
CS          Client/Server, "C/S"
CS1         Capability Set 1 (IN), "CS-1"
CSAPI       Common Speller Application Program Interface
CSCC        Concurrent SuperComputing Consortium (Org.)
CSCW        Computer Supported Cooperative Work
CSD         Corrective Service Diskettes (IBM)
CSDC        Circuit Switched Digital Capability
CSG         Constructive Solid Geometry (3D Design)
CSH         Complementary Software House (DEC)
CSH         C SHell (Unix)
CSIRO       Commonwealth Scientific and Industrial Research Organization (Org.)
CSMA        Carrier Sense Multiple Access
CSMACA      Carrier Sense Multiple Access with Collision Avoidance, "CSMA/CA"
CSMACD      Carrier Sense Multiple Access with Collision Detection (IEEE 802.3), "CSMA/CD"
CSNET       Computer + Science NETwork (USA, Netzwerk, BITNET)
CSP         Communicating Sequential Processes
CSP         Cross System Product (IBM)
CSPDU       Convergence Sublayer Protocol Data Unit (ATM), "CD PDU"
CSS         Computer Sub System
CSS         ??? (Schnittstelle) 
CSTA        Computer Supported Telecommunications Applications
CSTS        Computer Supported Telecommunications Standard
CSU         Channel Service Unit (ATM)
CSUNET      California State University NETwork (Netzwerk, USA)
CSV         Comma Seperated Values
CT          Computer Technik, "c't"
CTB         Communication ToolBox (Apple)
CTCA        Channel To Channel Adapter (IBM, System/370)
CTD         Cell Transfer Delay (UNI, ATM)
CTERM       Command TERMinal (DEC)
CTI         Computer Telephony Integration
CTR         Common Technical Regulations (EG)
CTS         Clear To Send (MODEM, RS-232)
CTSS        Compatible / Cray  Time Sharing System (Unix, Vorlaeufer)
CTT         Cartridge Tape Transport
CTTC        Cartridge Tape Transport Controller
CTY         Console teleTYpe
CUA         Common User Application
CU[L]       [see you [Later]] (DFUE-Slang)
CUSI        Configurable Unified Search Interface (WWW)
CUSP        Commonly Used System Programm (DEC)
CUT         Control Unit Terminal
CUU         ComputerUnterstuetzte Unterweisung
CVF         Compressed Volume File (DOS)
CVS         Computer Vision Syndrome
CWI         Centrum voor Wiskunde en Informatica (Org., Holland)
CWIS        Campus Wide Information System
CXI         Common X-windows Interface (Unix)
DA          Destination Address (SNA, Token Ring)
DAA         Digest Access Authentication (HTTP)
DAC         Digital to Analog Converter
DAC         Discretionary Access Control
DACS        Digital Access Control System
DAD         Desktop Application Director (WordPerfect)
DAEMON      Disk And Execution MONitor (Unix)
DAG         DatenAnschaltGeraet
DAI         ??? (Sun)
DAL         Data Access Language (Apple)
DAM         Direct Access Mode
DAM         Distributed Abstract Machine
DAMQAM      Dynamically Adaptive Multicarrier Quadrature Amplitude Modulation
DAP         Data Access Protocol (DEC)
DAP         Developers Assistance Program (IBM)
DAP         Direct / Directory Access Protocol (X.500)
DAP         Directory Application Protocol (IN)
DARI        Database Application Remote Interface (IBM)
DAS         Dual Attach Station (FDDI, Schneider & Koch)
DAS         Dynamic Allocation Scheme [protocol]
DASD        Direct Access Storage Device
DAS         Directory Assistance Service [protocol] (RFC 1202)
DASP        Drive Active, Slave Present (IDE)
DASS        Distributed Authentication Security Service (RFC 1507)
DAT         Digital Audio Tape
DATEX       DATa EXchange
DAU         Duemmster Anzunehmender User (DFUE-Slang)
DAV         Digital Audio Video (Apple)
DAVID       Digital Audio Video Interactive Decoder
DB2         DataBase 2 (IBM)
DBA         DataBase Administrator
DBAC        DataBase Administration Center
DBAS        DataBase Administration System
DBCS        Double-Byte Character Set
DBDMA       ??? Direct Memory Access (Apple)
DBI         DataBase Interface
DBM         DataBase Manager
DBME        DataBase Managment Environment
DBMS        DataBase Management System
DBP         DataBase Publishing
DBRAD       Data Base Relational Application Directory
DBRM        Data Base Request Module
DBS         Duplex Bus Selector
DBTG        Data Base Task Group (CODASYL)
DC          Data Cartridge
DCA         Digital Communication Associates
DCA         Distributed Communication Architecture
DCA         Document Center Architecture
DCA         Document Content Architecture (IBM, CCS)
DCA2        Dynamic Cache Architecture [level] 2
DCC         Display Combination Code
DCCS        DisContiguous Shared Segments
DCD         Data Carrier Detect (MODEM, RS-232)
DCE         Data Circuit terminating Equipment (X.25)
DCE         Data Communications Equipment
DCE         Distributed Computing Environment (OSF)
DCERPC      Distributed Computing Environment / Remote Procedure Call, "DCE/RPC"
DCI         Data Capture Interface (UMA)
DCI         Device Control Interface
DCI         Display Control Interface (MS, Windows, Intel)
DCL         Data Control Language
DCL         DEC Control Language
DCL         Digital Command Language (DEC, VMS)
DCLU        Digital Carrier Line Unit
DCM         Digital Carrier Module
DCNA        Data Communication Network Architecture
DCS         Digital Cellular System (Mobile Systems)
DCT         Discrete Cosinus Transformation (MPEG, JPEG)
DD          Data Dictionary
DD          Double Density
DDC         Digital Data Channel (VESA)
DDCMP       Digital Data Communication Message Protocol
DDCS2       Distributed Database Connection Services /2 (IBM), "DDCS/2"
DDE         DatenenDEinrichtung
DDE         Dynamic Data Exchange
DDK         Device Develpment / Driver Kit (MS)
DDL         Data Definition Language
DDL         Document Description Language
DDM         Distributed Data Management (IBM, CCS)
DDN         Defense Data Network (USA, Netzwerk)
DDP         Datagram Delivery Protocol
DDP         Distributed Data Processing
DDR         Dynamic Desktop Router (Cogent)
DDS         Digital Data Storage (Sony, HP, DAT)
DDS         Digital Data Service / System
DDSA        Digital Data Service Adapter
DDT         Dynamic Debugging Tool
DDV         DatenDirektVerbindung
DDX         Distributed Data eXchange
DEA         Deterministischer Endlicher Automat
DEBI        DMA Extended Bus Interface (Acorn)
DEC         Digital Equipment Corporation (Hersteller)
DECIX       DEutscher Commercial Internet eXchange, "DE-CIX"
DECNET      Digital Equipment Corporation NETwork
DECT        Digital European Cordless Telecommunications
DECUS       Digital Equipment Computer Users Society (Org.)
DELNI       Digital Ethernet Local Network Interconnect
DELQA       Digital Ethernet Lowpower Q-bus network Adapter
DELUA       Digital Ethernet Lowpower Unibus network Adapter
DELUG       DEutsche Linux User Group (Org.)
DEMARC      Distributed Enterprise Managemant ARChitecture (Banyan), "DeMarc"
DEMPR       Digital Ethernet Multi-Port Repeater
DEN         Document Enabled Networking (Novell, Xerox)
DEPCA       Digital Ethernet Personal Computer-bus Adapter
DEQNA       Digital Ethernet Q-bus Network Adapter
DEREP       Digital Ethernet REPeater
DES         Data Encryption Standard (Verschluesselung, NIST)
DESPR       Digital Ethernet Single Port Repeater
DESTA       Digital Ethernet thin-wire STation Adapter
DETEBERKOM  DEutsche TElekom BERliner KOMmunikationssystem, "DeTeBerkom"
DEUNA       Digital Ethernet Unibus Network Adapter
DFD         Data Flow Diagram
DFDSM       Data Facility Distributed Storage Management (IBM)
DFI         Digital Facility Interface
DFKI        Deutsches Forschungszentrum fuer Kuenstliche Intelligenz (Org.)
DFN         Deutsches ForschungsNetz (Netzwerk)
DFP         Data Facility Product
DFP         Distributed Functional Plane (IN)
DFT         Distributed Function Terminal
DFU         Data File Utility (IBM, ADT)
DFUE        DatenFernUEbertragung
DFS         Direct File System (Novell, Oracle)
DFS         Distributed File System (DCE)
DFT         Distributed Function Terminal (IBM)
DGIS        Direct Graphics Interface Standard
DGP         Dissimilar Gateway Protocol
DHCF        Distributed Host Command Facility (IBM, CCS)
DIA         Document Interchange Architecture (IBM, CCS)
DIANE       DIrect Access Network for Europe
DIB         Device Independent Bitmap
DIB         Directory Information Base (X.500)
DIC         Digital Interface Controller
DIF         Document Interchange Format
DIFMOS      Double Injection Floating Gate MOS
DII         Dynamic Invocation Interface
DIL         Dual InLine
DIME        Desktop Integrated Media Environment (COSE)
DIN         Deutsches Institut fuer Normung (Org.)
DIP         Dual In-line Package
DIS         Draft International Standard (ISO)
DISP        Dutch Independent Shareware Programmer (Org.), "D.I.S.P."
DISK        Deutschsprachige Internationale SAS-benutzer Konferenz
DISOSS      DIStributed Office Support System (IBM)
DIT         Directory Information Tree (X.500)
DIU         Digital Interface Unit
DIVE        Direct Interface Video Extensions (IBM, MMPM/2)
DIX         DEC, Intel, Xerox (Ethernet)
DKE         Deutsche Elektrotechnische Kommission (Org., DIN, VDE)
DKRZ        Deutsches KlimaRechenZentrum (Org.)
DLC         Data Link Control
DLD         Deutsche Linux Distribution
DLKL        ??? (Datenbanken) 
DLL         Dynamic Link Library
DLL         Dynamic Link Loader (BS2000)
DLP         Discrete Logarithmic Problem
DLR         Dynamic Link Routine
DLSW        Data Link Switching (APPN), "DLSw"
DLT         Digital Line Tape (DEC)
DM          Delta Modulation
DM          Disconnect Mode (LAPB)
DMA         Direct Memory Access
DMAC        Direct Memory Access Controller
DMC         Desktop Multimedia Conferencing
DMD         Device Manager Driver (OS/2)
DMD         Digital Micromirror Devive (IC)
DMD         Directory Management Domain (OSI)
DMDF        Distributed Management Data Facility (DCE, DME)
DME         Distributed Management Environment (OSF)
DMF         Digest Message Format (Internet, RFC 1153)
DMI         Definition of Management Information (OSI)
DMI         Desktop Management Interface (DTMF)
DMI         Digital Multiplexed Interface
DML         Data Manipulation Language
DML         Data Manipulation Logic
DMOS        Diffusion Metal Oxide Semiconductor (IC)
DMS         Data Management System
DMS         Digital Multiplexed System
DMSCMS      Display Management System/Conversional Monitor System, "DMS/CMS"
DMS         Distributed Media Services (COSE)
DMS         Document Management System
DMTF        Desktop Management Task Force
DMU         Data Manipulation Unit
DN          Distinguished Name (X.500)
DNA         Digital Network Architecture (DEC)
DNC         Direct Numerical Control
DNC         Dynamic Network Controller
DNCP        DECNet phase iv Control Protocol (RFC 1762)
DNCRI       Division of Networking and Communic. Research and Infrastructure
DNHR        Dynamic Non Hierarchical Routing
DNI         DECnet Network Interface
DNIC        Data Network Identification Code (X.121)
DNS         Domain Name System (Internet)
DO          Distributed Objects (NeXT)
DOE         Distributed Objects Everywhere (Sun)
DOMAIN      Distributed Operating Multi Access Interactive Network (Apollo)
DOMF        Distributed Object Management Facility (Sun)
DOOM        Decentralised Object Orientated Machine
DOS         Disk Operating System
DOV         Data Over Voice [MODEM]
DOW         Direct OverWrite (MO, ...)
DP          Data Processing
DP          Detection Point (IN)
DPE         Distributed Processing Environment (IN)
DPI         Distributed Program Interface (SNMP)
DPI         Dots Per Inch
DPM         Defects Per Million
DPMI        DOS Protected Mode Interface (DOS)
DPMS        Display Power Management Standard (VESA)
DPMS        DOS Protected Mode Services (Novell, DOS)
DPNPH       Data Packet Network-Packet Handler, "DPN-PH"
DPP         Distributed Parallel Processing
DPS         Display PostScript (NeXT)
DPSK        Differential Phase Shift Keying (DFUE)
DPV         DatenPaketVermittlung [srechner]
DQDB        Distributed Queue Dual Bus (ISO, IEC, IS 8802/6)
DQL         Database Query Language
DR          Digital Research (Hersteller)
DRAM        Dynamic Random Access Memory
DRC         Design Rule Checks (CAD)
DRD         Data Reading Device
DRDA        Distributed Relational Database Architecture (IBM)
DRDAAS      Distributed Relational Database Architecture Application Server (IBM), "DRDA AS"
DREN        Defense Research and Engineering Network (Netzwerk)
DRI         Defense Research Internet (ARPANET, Nachfolger, Netzwerk)
DRM         Destination Release Mechanism (DQDB)
DRMU        Digital Remote Measurement Unit
DRP         DECnet Routing Protocol
DS          Deutschsprachige Shareware (Autoren, Haendler, Org.)
DS          Digital Services [level]
DS          Distribution Services (SNA)
DS          Double Sided [disks]
DS3         Digital Signal level 3, "DS-3"
DSA         Digital Signature Algorithm (Verschluesselung, NIST)
DSA         Digital Storage Architecture
DSA         Directory System Agent (X.500)
DSA         Distributed Systems Architecture (Bull)
DSA         Dynamic Scalable Architecture
DSAP        Destination link SAP
DSBAM       Double-SideBand Amplitude Module
DSC         Document Structuring Conventions (Adobe)
DSD         Data Structure Diagram
DSE         Data Switching Equipment (X.25)
DSI         Defense Simulation Internet
DSIMM       Dual [RAS] Single Inline Memory Module (IC), "D-SIMM"
DSL         Distributed Service Logic (IN)
DSN         Developer Support News (IBM, OS/2)
DSN         Distributed Systems Network (HP)
DSOM        Distributed System Object Model (IBM)
DSP         Digital Signal Processing / Processor
DSP         Direct / Directory System Protocol (X.500)
DSP         Document Services for Printing (Xerox), "DS/P"
DSR         Data Set Ready (MODEM, RS-232)
DSRI        Digital Standard Relational Interface
DSS         Decision Support System
DSSI        Digital Storage Systems Interconnect (VAX)
DSSSL       [standard] Document Style Semantics Specification Language (DTD)
DST         Daylight Saving Time (Sommerzeit)
DSTN        Double SuperTwisted Nematic [LCD]
DSU         Digital Service Unit (ATM)
DSU         Distribution Service Unit (IBM, SNADS)
DTAP        Direct Transfer Application Part (Mobile Systems)
DTC         DeskTop Conferencing
DTD         Document Type Definition (SGML)
DTE         Data Terminal Equipment (X.25)
DTH         DialogTestHilfe (BS2000)
DTMF        DeskTop Management task Force (Intel)
DTMF        Dual Tone Multi Frequency
DTP         DeskTop Publishing
DTR         Data Terminal Ready (MODEM, RS-232)
DTR         DeskTop Reproduction (DTP)
DTS         Direct To SOM
DTS         Distributed Time Server
DTS         Distributed Time Service (DCE)
DTU         Demand Transmission Unit
DUA         Directory User Agent (X.500)
DUeE        DatenUebertragungsEinrichtung
DV          DatenVerarbeitung
DVA         DatenVerarbeitungsAnlage
DVB         Digital Video Broadcasting
DVD         Deutsche Vereinigung fuer Datenschutz [e.V.] (Org.)
DVD         Digital Video Disk
DVI         Digital Video Interactive (Intel, IBM, Lotus)
DVI         DeVice Independent
DVL         Digital Video Link
DVMA        Direct Virtual Memory Access
DVR         ??? (DTP)
DVS         DatenVerwaltungsSystem (BS2000)
DVST        DatenVermittlungsSTelle
DVX         Digital Voice eXchange
EA          Eingabe/Ausgabe, "E/A"
EA          Escrowed Authenticator (Verschluesselung, EES)
EA          Extended Attribute (OS/2)
EADAS       Engineering and Administrative Data Acquisition System
EADASNM     EADAS/Network Management, "EADAS/NM"
EAM         Evanescent Access Method (BS2000)
EAN         European Article Numbering [system]
EARN        European Academic Research Network (Netzwerk)
EAROM       Electrically Alterable Read Only Memory
EASI        Enhanced Asynchronous SCSI Interface
EATA        Enhanced AT Bus Attachment
EAZ         EndgeraeteAuswahlZiffer (ISDN)
EB          Electronic Banking
EBC         EISA Bus Controller
EBNF        Extended Backus-Naur-Form
EBROM       Electronic Book - Read Only Memory, "EB-ROM"
EBCDIC      Extended Binary-Coded Decimal Interchange Code
EBV         Elektronische BildVerarbeitung
EC          Error Correction (MODEM)
ECC         Electrical Connectivity Checks (CAD)
ECC         Error Correction Code (CD)
ECF         Enhanced Connectivity Facilities (IBM)
ECHT        European Conference on Hypermedia Technology
ECL         EClectic Language (Harvard, TOPS)
ECL         Emitter Coupled Logic
ECM         Entity Coordination Management (FDDI)
ECM         Error Correction Mode
ECMA        European Computer Manufacturers Association (Org.)
ECN         European Counter Network
ECOM        Electronic Computer Originated Mail, "E-COM"
ECOOP       European Conference on Object Orientated Programming
ECP         Enhanced Capability Port (MS)
ECP         Enhanced Communication Protocol
ECPA        Electronic Communications Privacy Act (USA)
ECSA        Exchange Carriers Standards Association (Org.)
ED          End Delimiter (Token Ring)
ED          Enhanced Density
EDA         Electronic Design Automation
EDAC        Electromechanical Digital Adapter Circuit
EDC         Error Detection Code (CD)
EDI         Electronic Data Interchange (GOSIP)
EDIF        Electronic Design Interchange Format
EDIFACT     Electronic Data Interch. For Administration, Commerce and Transport
EDLC        Ethernet Data Link Control
EDM         Engineering Data Management
EDMS        Engineering Document Management System
EDODRAM     Extended Data Out Dynamic Random Access Memory, "EDO-DRAM"
EDP         Electronic Data Processing
EDPS        Electronic Data Processing System
EDR         External Developer Release
EDRAM       Enhanced Dynamic Random Access Memory
EDT         Eastern Daylight Time (USA, TZ)
EDV         Hmm - Eigentlich Doofes Vergnuegen
EDVAC       Electronic Discrete Variable Automatic Computer
EEI         Equipment to Equipment Interface
EEM         External Expansion Module (Sun)
EEMS        Enhanced Expanded Memory Specification
EEP         Entry Exit Procedure (R:Base)
EEPROM      Electronical Erasable Programmable Read Only Memory
EES         Escrowed Encryption Standard (Verschluesselung, NSA)
EFCI        Explicit Forward Congestion Indication (ATM)
EFF         Electronic Frontier Foundation (Internet, Org.)
EFL         Emitter Follower Logic (IC)
EFM         Eight-to-Fourteen-Modulation (CD)
EFT         Electronic Funds Transfer
EFT         Euro-FileTransfer (ISDN, ETS 300 075)
EFTS        Electronic Funds Transfer System
EGA         Enhanced Graphics Adapter
EGP         Exterior Gateway Protocol (RFC 904)
EGS         Enhanced Graphics System (Commodore)
EHF         Encoding Header Field (Internet, RFC 1154)
EHLLAPI     Emulator High Level Language API (IBM, 3270)
EIA         Electronics Industry Association (USA, Org.)
EICAVR      European Institute for Computer Anti-Virus Research (Org.)
EIDE        Enhanced Integrated Drive Electronics
EIS         Executive Information System
EISA        Enhanced Industry Standard Architecture
EISS        Europaeisches Institut fuer SystemSicherheit (Org., Karlsruhe)
EJC         Electronic Journal of Communication
EL          Electro Luminiscent [display]
EL1         Extensible Language one (ECLogic)
ELAN        Emulated Local Area Network (ATM, LANE)
ELH         Entity Life History (Datenbanken)
ELI         Embedded LISP Interpreter
ELK         Extension Language Kit (Scheme)
ELLIS       EuLisp LInda System (LISP)
ELM         ELectronic Mailer (Unix)
ELOD        Erasable Laser Optical Disk
ELP         Equational Logic Programming [language]
EM          Extensions Manager (Apple)
EMA         Electronic Mail Association (USA)
EMA         Enterprise Management Architecture (DEC)
EMA         Extended Mercury Autocode
EMACS       Editing MACroS (GNU)
EMB         Enhanced Master Burst (EISA)
EMC         ElectroMagnetic Compatibility
EMI         ElectroMagnetic Interference
EMM         Expanded Memory Manager
EMMA        European MultiMedia Award
EMR         Electro-Magnetic Radiation
EMS         Expanded Memory Specification
EMSC        Electronic Mail Standards Committee (Org.)
EMV         ElektroMagnetische Vertraeglichkeit (EN 55022)
EN          Europa Norm
ENA         Electronic Networking Association (Internet)
ENA         Extended Network Addressing (IBM, SNA)
ENDC        European Network Design Center (3COM)
ENIAC       Electronic Numerical Integrator And Computer
ENS         Enterprise Network Services (Banyan VINES)
EO          Europe Online (Netzwerk)
EOD         Erasable Optical Disk
EOF         End Of File
EOI         End Of Input
EOI         End Of Interrupt
EOL         End Of Line
EOM         End Of Message
EOP         End Of Procedure (Fax)
EOS         Extended Operating System
EOT         End Of Text
EOT         End Of Transmission
EOUG        European Oracle User Group (Org.)
EPA         Enhanced Performance Architecture
EPA         Environmental Protection Agency (USA, Org.)
EPAC        ??? (IC)
EPLD        Erasable Programmable Logic Device
EPP         Enhanced Parallel Protocol (Intel, Zenith, Xircom)
EPROM       Erasable Programmable Read Only Memory
EPSI        Encapsulated PostScript Interchange
ER          Externer Rechner (BTX)
ERD         Entity-Relationship Diagram
ERIN        Environmental Ressources Information Network (Australien, Netzwerk)
ERM         Entity Relationship Model (Datenbanken)
EROM        Erasable Read Only Memory
ES          Extended Services (OS/2)
ESA         Enterprise Systems Architecture (IBM MVS/XA)
ESCP2       Epson ??? (Drucker)
ESCON       Enterprise Systems CONnect (IBM)
ESD         Electronic Software Distribution
ESDI        Enhanced Standard Device Interface
ESDS        Entry Sequenced Data Set (VSAM)
ESIS        End System to Intermediate System [protocol] (OSI), "ES-IS"
ESM         External Storage Module (Sun)
ESMD        Embedded Storage Module Disk
ESMD        Enhanced Storage Module Device
ESN         Electronic Serial Number
ESN         Electronic Switched Network
ESNET       Energy Sciences NETwork (Netzwerk, USA)
ESP         Emulation Sensing Processor
ESP         Encapsulating Security Payload (IPSEC)
ESP         Ethernet Serial Port
ESPCM       ??? Pulse Code Modulation
ESPRIT      Europ. Strategic Progr. of Research and Develop. in Information Technology
EST         Eastern Standard Time (USA, TZ)
ETANN       Electrically Trainable Analog Neural Network
ETB         Elektronisches TelefonBuch (BTX)
ETB         End of Transmission Block
ETLA        Extended Three Letter Acronym
ETR         Early Token Release (Token Ring)
ETS         European Telecommunication Standard
ETSI        European Telecommunication Standards Institute (Org.)
ETX         End of TeXt
EU          Execution Unit (CPU)
EUS         EntscheidungsUnterstuetzende Systeme
EUNET       European Unix NETwork
EUUG        European Unix User Group (Org.)
EV          EtagenVerteiler (Kabel, EN 50 173)
EVN         EinzelVerbindungsNachweis (Telekom)
EWOS        Euopean Workshop for Open Systems (OSI)
EWS         Employee Written Software (IBM)
EXTRA       EXecutionTRace Analyser (IBM, OS/2)
EXUG        European X Users Group (Org.)
FACE        Framed Access Command Environment (Unix, SVR4)
FAG         FernmeldeAnlagenGesetz
FAMOS       Floating gate Avalanche injection Metal Oxide Semiconductor (IC)
FAQ         Frequently Asked Questions
FARNET      Federation of American Research NETworks (Netzwerk)
FAST        First Application System Test
FAT         File Allocation Table
FB          Fiber optic Backbone
FBAS        FarbBild-AustastSystem (Video)
FC          Fibre Channel
FC          Frame Control (FDDI, Token Ring)
FCA         Flow Control Ack (DLSW)
FCAL        Fibre Channel - Arbitrated Loop, "FC-AL"
FCBS        File Control BlockS
FCC         Federal Communications Commission (Org., USA)
FCC         Forward Carbon Copy (DFUE)
FCFS        First Come, First Served
FCI         Fibre Channel Interface
FCI         Flow Control Indicator (DLSW)
FCO         Flow Control Operator Bits (DLSW)
FCP         [SCSI-3] Fibre Channel Protocol (SAM)
FCPH        Fibre Channel PHysical and signaling interface (SAM), "FC-PH"
FCS         Frame Check Sequence (FDDI, Token Ring)
FCS         Frame Check Sum (MODEM)
FDC         Floppy Disk Controller
FDD         Floppy Disk Drive
FDDI        Fiber Distributed Data Interface
FDDITPPMD   FDDI Twisted Pair-Physical layer, Medium Dependend, "FDDI TP-PMD"
FDE         Full Duplex Ethernet
FDL         File Definition Language
FDM         Frequence Division Multiplexing
FDMA        Frequency Division Multiple Access (Mobile Systems)
FDX         Full DupleX
FE          Functional Entity (IN)
FEA         Functional Entity Action (IN, UNI)
FEAST       Fast Data Encyphering Algorithm (Verschluesselung)
FEBE        Far End Block Error (SONET)
FEC         Forward Error Correction (GSM)
FECN        Forward Explicit Congestion Notification (ATM)
FEM         Finite Elemente Methode
FEN         Free-net Erlangen/Nuernberg
FEP         FrontEnd Processor
FER         Forward Error Correction (Satellit)
FET         Feld-Effekt Transistor
FFOL        FDDI Follow-On-LAN
FFS         Fast File System (Amiga)
FFS         Fast Filing System (BSD)
FFS         Flexible Fertigungs-Systeme
FFST2       First Failure Support Technology /2 (IBM), "FFST/2"
FFT         Final Form Text
FIF         Fractal Interchange Format
FIFF        Forum Informatikerinnen Fuer den Frieden (Org.)
FIFO        First In First Out
FIGLET      Frank, Ian and Glenn's LETters (ASCII, fonts)
FILO        First In Last Out
FIOC        Frame Input/Output Controller
FIP         Facility Interface Processor
FIPS        Federal Information Processing Standard
FIRST       ForschungsInstitut fuer Rechnerarchitektur und SoftwareTechnik (Org., GMD, Berlin)
FIS         FuehrungsInformationsSysteme
FKS         Fernmelde-Klein-Steckverbindung ;-) (Westernstecker)
FL          Fiber optic Link
FLACC       Full Level Algol Checkout Compiler
FLC         Ferroelectric Liquid Crystal
FLEA        Four Letter Extended Acronym
FLOPS       FLoating point Operations Per Second
FM          Frequenz-Modulation
FMS         FernMeldeSystem
FNC         Federal Networking Council (Org., USA)
FO          Fiber Optic
FOC         Fiber Optic Cable / Communications
FOD         Flexible Optical Disk
FOIRL       Fiber Optic InterRepeater Link
FOLDOC      Free OnLine Dictionary Of Computing (WWW)
FOMAU       Fiber Optic MAU (Ethernet)
FON         Fiber Optics Network
FOOBAR      FTP Operation Over Big Address Records (RFC 1639)
FOOT        Forum for Object Oriented Technology (CERN)
FORTRAN     FORmula TRANslation
FOSSIL      Fido Opus Seadog Standard Interface Layer
FOT         Fiber Optic Transceiver
FOX         Field Operational X.500
FPA         Floating Point Accelerator
FPC         Floating Point Coprocessor
FPDU        FTAM Protocol Data Unit
FPE         Floating Point Engine
FPGA        Field Programmable Gate Array
FPLA        Field Programmable Logic Array
FPLMTS      Future Public Land Mobile Telecommunications System (IN, Mobile Systems)
FPP         Floating Point Processor
FPR         Floating Point Register (FPU)
FPS         Fast Packet Switching (X.25, Datex-J)
FPS         Frames Per Second
FPU         Floating Point Unit
FQDN        Fully Qualified Domain Name (Internet)
FRAM        Ferroelectric Random Access Memory
FRF         Floatingpoint Register File (DEC)
FRICC       Federal Research Internet Coordinating Committee (Org.)
FRL         Frame Representation Language (AI)
FRR         Functional Recovery Routine
FRS         Flexible Route Selection
FS          Frame Status (Token Ring)
FSCK        File System Consistency checK (Unix)
FSF         Free Software Foundation (Org., GNU)
FSK         Frequency Shift Keying (DFUE)
FSM         Finite State Machine
FSP         File Slurping Protocol
FSS         Fast System Switch (Unix)
FST         Flat Square Technology (Hitachi)
FSTN        Film SuperTwisted Nematic [LCD]
FTA         Floptical Technology Association (3M u.a.)
FTAM        File Transfer And Management (GOSIP, ISO 8571/8572)
FTOS        File Transfer OSI Support
FTP         File Transfer Protocol (Internet, RFC 959/765)
FTP         Foiled Twisted Pair (Kabel)
FTR         Full Text Retrieval
FTS         Fidonet Technical Standard
FTSC        Fidonet Technical Standard Conference
FTZ         FernmeldeTechnische Zulassung
FUEV        Fernmeldeanlagen-UeberwachungsVerordnung
FUBAR       Fouled / Fucked Up Beyond All Repair (DFUE-Slang)
FWIW        For What It's Worth (DFUE-Slang)
FYI         For Your Information (Internet)
GA          General Availability (OS/2)
GAIA        GUI Application Interoperability Architecture
GAIN        German Advanced Integrated Network (IBM)
GAL         Generic Array celL / Logic
GAN         Global Area Network
GAP         Generic Access Profile (DECT)
GB          GigaByte
GBIP        General Purpose Interface Bus
GBPS        GigaBits Per Second
GCC         GNU C Compiler
GCA         General Communications Architecture (Ingres)
GCL         Graphics Command Language
GCOS        General Comprehensive Operating System (Honeywell)
GCRA        Generic Cell Rate Algorithm (UNI, ATM)
GCS         Group Control System (IBM, VME)
GDA         Global Directory Agent (DCE)
GDAP        Government Document Application Profile
GDB         GNU DeBugger
GDBM        GNU Data Base Manager
GDD         Gesellschaft fuer Datenschutz und Datensicherung (Org.)
GDDM        Graphical Data Display Manager (IBM)
GDI         Graphical Display Interface
GDMO        Guidelines for the Definition of Managed Objects (OSI)
GDOS        Graphics Device Operating System
GDS         Generalized Data Stream (IBM, APPC)
GDS         Global Directory Service (DCE)
GDT         Global Descriptor Table
GECOS       General Electric Comprehensive Operating System
GEM         Graphics Environment Manager
GENIE       General Electric Network for Information Exchange (Netzwerk)
GEOS        Graphic Environment Operating System
GFC         Generic Flow Control (ATM)
GFC         Going For Coffee (DFUE-Slang)
GFP         Global Functional Plane (IN)
GGP         Gateway to Gateway Protocol (RFC 823)
GGS         GueteGemeinschaft Software e.v. (Org.)
GHTSTN      Guest Host Technique SuperTwisted Nematic [LCD], "GHT-STN"
GID         Group ID
GIGO        Garbage In Garbage Out
GINA        Generische INteraktive Anwendung (GMD)
GIPS        Giga Instructions Per Second
GIS         Geographic Information System
GKS         Graphic Kernel System
GM          General Midi [standard]
GMD         Gesellschaft fuer Mathematik und Datenverarbeitung (Org.)
GML         General Markup Language
GMI         Generic Management Information (OSI)
GMT         Greenwich Mean Time (UK, TZ)
GNA         Global Network Academy (Internet)
GNN         Global Network Navigator (Internet)
GNU         GNU's Not Unix (rekursiv!)
GOCA        Graphic Object Content Architecture (IBM, MO:DCA)
GOD         Global OutDial
GOD         Grundsaetze ordnungsmaessiger Datenverarbeitung, "GoD"
GOSIP       Government Open Systems Interconnections Profile
GPC         General-Purpose Computation
GPCI        Graphics Processor Command Interface
GPF         General Protection Fault (Windows)
GPI         Graphics Programming Interface
GPIB        General-Purpose Interface Bus
GPIO        General Purpose Input Output
GPL         General Public Licence (GNU)
GPL         Graphics Programming Language
GPP         [SCSI-3] Generic Packetized Protocol (SAM)
GPR         General Purpose Register (CPU)
GPS         Global Positioning System
GPSI        Graphics Processor Software Interface
GPV         General Public Virus
GRE         Generic Routing Encapsulation (RFC 1701)
GREP        Global Regular Expression Print (Unix)
GS          Gepruefte Sicherheit
GSDS        Genealogy Software Distribution System
GSM         Global System for Mobile communications (EG-Norm)
GSS         Generic Security Service (IETF)
GSSAPI      Generic Security Service API (RFC 1508), "GSS-API"
GTDM        Group Time Division Multiplexing [protocol]
GUI         Graphical User Interface
GUIDE       Graphical User Interface Design Editor (Sun)
GUUG        German Unix User Group (Org.)
GV          GebaeudeVerteiler (Kabel, EN 50 173)
HACMP       High Availability Cluster Multi Processing
HAL         Hard Array Logic
HAL         Hardware Abstraction Layer (Windows, NT)
HAL         Heuristically programmed ALgorithmic computer (2001)
HALPC       Houston Area League of PC-Users, "HAL-PC"
HANFS       Highly Available Network File System
HAP         Host Access Protocol
HAT         Hashed Address Table
HBA         Host Bus Adapter (SCSI)
HCL         Host Control Links
HCSDS       High Capacity Satellite Digital Service
HCT         ??? (IC) 
HCTDS       High-Capacity Terrestrial Digital Service
HD          High Density
HDC         Hard Disk Controller
HDCD        High Density Compact Disk
HDD         Hard Disk Drive
HDF         Hierarchical Data Format (NCSA)
HDH         HDLC Distant Host
HDI         HOOPS Device Interface (VAGI)
HDLC        High-level Data Link Control
HDN         Hochgeschwindigkeits-DatenNetz
HDR         High Dynamic Range
HDSL        High-speed Digital Subscriber Line (Bell)
HDX         Half DupleX
HEC         Header Error Control (ATM)
HEPNET      High Energy Physics NETwork (Netzwerk)
HFD         Hauptanschluss fuer Direktruf / Datenleitung, "HfD"
HFS         Hierachical File System (Apple, CD)
HGA         Hercules Graphics Adapter
HGC         Hercules Graphics Card
HIC         Hybrid Integrated Circuit
HIPPI       High Performance Peripheral Interface
HIPPI       HIgh Performance Parallel Interface
HLLAPI      High Level Language Application Programming Interface
HLR         Home Location Register (Mobile Systems)
HLS         Hue, Lightness, Saturation (Farbsystem, DTP)
HMUX        Hybrid MUltipleXer (FDDI), "H-MUX"
HMA         High Memory Area
HMC         Highspeed Memory Controller (Apple)
HMD         Head Mounted Display (VR)
HMOS        High performance Metal Oxide Semiconductor (IC)
HMP         Host Monitoring Protocol (RFC 869)
HOOPS       Hierachical Object Orientated Picture System (Ithaca)
HP          Hewlett Packard (Hersteller)
HPC         High Performance Computing
HPCC        High Performance Computing and Communication
HPF         High Performance FORTAN
HPFS        High Performance FileSystem (OS/2)
HPGL        Hewlett Packard Graphics Language
HPIB        Hewlett Packard Interface Bus
HPOFS       High Performance Optical File System (IBM, OS/2, MOD)
HPPA        Hewlett Packard Precision Architecture
HPPCL       Hewlett Packard Printer Control Language
HRC         Hybrid Ring Control (FDDI)
HS          High Speed (MODEM)
HSC         Hierarchical Storage Controller
HSFS        High Sierra File System
HSI         High Speed Interface
HSIS        ??? High Speed Interface / SNA, "HSI/S"
HSLAN       High Speed Local Area Network, "HS-LAN"
HSLN        High Speed Local Network
HSM         Hierarchisches SpeicherManagement
HSSDS       High-Speed Switched Digital Service
HST         High Speed Technology (US Robotics)
HTDM        Hybrid Time Division Multiplexing [protocol]
HTML        HyperText Markup Language (WWW)
HTTP        HyperText Transfer Protocol (WWW)
HTTPD       HyperText Transfer Protocol DAEMON (WWW)
HTTPNG      HyperText Transfer Protocol - Next Generation (WWW), "HTTP-NG"
IAB         Internet Activities / Architecture Board (RFC 1160)
IAC         InterApplication Communication (Apple)
IAK2        Internet Access Kit / 2 (IBM), "IAK/2"
IANA        Internet Assigned Numbers Authority
IANW        International Academic Networkshops [conference]
IAS         Interactive Application Systen (DEC)
IAT         Information Access Technology (Provider)
IAUG        International AIX User Group (Org.)
IBFN        Integriertes BreitbandFernmeldeNetz
IBM         International Business Machines (Hersteller)
IBN         Integrated Business Network
IC          Integrated Circuit
ICA         Intelligent Communication Adapter (Banyan VINES)
ICAN        Individual Customer Access Network
ICC         Intelligent Communications Control
ICC         International Color Committee (Org.)
ICCC        InterClient Communication Convention (X-windows)
ICCCM       InterClient Communication Convention Manual (X-windows)
ICCS        Integrated Communications Cabling System (SNI)
ICDA        Integrated Cached Disk-Arrays
ICMC        International Computer Music Conference (Messe)
ICMP        Internet Control Message Protocol (TCP/IP, RFC 792)
ICR         Intelligent Character Recognition
ICS         IBM Cabling System
ICSC        Intelligent Channel/Storage Control, "IC/SC"
ICU         Interactive Chart Utility (IBM, GDDM)
ID          IDentification
IDAPI       Integrated Database API (IBM, Novell, Borland)
IDAS        Interchange DAta Structure
IDC         Inter-Device Communication (IBM, OS/2)
IDDD        International Direct Distance Dialing
IDE         Integrated Drive Electronics
IDEA        International Data Encryption Algorithm (Verschluesselung)
IDEA        Internet Design, Engineering, and Analysis notes (IETF)
IDI         Initial Domain Identifier
IDL         Interactive Data Language (Research Systems)
IDL         Interface Definition Language (DCE, ORB)
IDP         Internet Datagram Protocol (XNS)
IDRC        ??? (Datenkompression)
IDS         Information Delivery System
IDS         Internal Directory System
IDT         Interrupt Descriptor Table
IDU         Interface Data Unit
IDUPGSSAPI  Independant Data Unit Protection Generic Security Service API (GSS), "IDUP-GSS-API"
IDV         Individuelle DatenVerarbeitung
IDVC        Integrated Data/Voice Channel
IE          Information Element (ATM)
IE          Information Engineering
IEC         International Electrotechnical Commission (Org.)
IEE         Institute of Electrical Engineers (Org., UK)
IEEE        Institute of Electrical and Electronic Engineers (Org., USA)
IEF         Information Engineering Facility
IEMSI       Interactive Electronic Mail Standard Identification
IEN         Internet Engineering Notes
IEN         Internet Experiment Notebook (Vorlaeufer, RFC)
IESG        Internet Engineering Steering Group (IETF)
IETF        Internet Engineering Task Force (IAB)
IETFWG      Internet Engineering Task Force - Working Group (RFC 1603), "IETF-WG"
IEW         Information Engineering Workbench (IBM)
IF          Information Flow (IN)
IFCM        Independent Flow Control Messages (SSP)
IFD         Information Flow Diagram (IRM)
IFIP        International Federation of Information Processing societies (Org.)
IFNA        International FidoNet Association (Org.)
IFP         Instruction Fetch Pipeline (Motorola, CPU)
IFR         Interleaved Frame Recording (Video)
IFS         Installable File System (OS/2)
IFS         Intelligent Fax System (Ricoh)
IFS         Internal Field Seperator (Unix)
IGC         Institute for Global Communications (USA)
IGD         [Fraunhofer] Institut fuer Graphische Datenverarbeitung (Org.)
IGES        Initial Graphics Exchange Specification
IGMP        Internet Group Multicast Protocol (RFC 1112)
IGN         IBM Global Network (Netzwerk)
IGP         Interior Gateway Protocol
IIIR        Integration of Internet Information Ressources (IETF)
IIL         Integrated Injection Logic
IIN         Integrated Information Network
IISP        Interim Inter-Switch Signaling Protocol (P-NNI, ATM)
IJCAI       International Joint Conference on Artificial Intelligence
ILMI        Interim Local Management Interface (ATM)
ILLINET     ILlinois LIbrary NETwork (Netzwerk, USA)
IM          Interface Module
IMA         Interactive Multimedia Association (Org.)
IMA         International MIDI Association (Org.)
IMAC        Isochronous Media Access Control (FDDI), "I-MAC"
IMAP        Interactive Mail Access Protocol (RFC 1176/1203)
IME         Input Method Editor (MS, Windows)
IMHO        In My Humble Opinion (DFUE-Slang)
IMP         Interface Message Processors (ARPANET, MILNET)
IMS         Information Management System (IBM)
IMS         Integrated Management System
IMS         International Meta Systems (Hersteller)
IMSO        Integrated Micro Systems Operation (Intel)
IMSVS       Information Management System/Virtual Storage, "IMS/VS"
IN          Individual Network [e.v.] (Org., Internet)
IN          Intelligent Network
INA         Intelligent Network Architecture (IN)
INAP        Intelligent Network Application Protocol (IN)
INCM        Intelligent Network Conceptual Model (IN)
INET        International NETworking Conference, "iNET"
INGRES      INteractive Graphic REtrieval System
INL         Inter Node Link
INN         Inter Node Network
INOC        Internet Network Operations Center
INRIA       Institut National de Recherche en Informatique et Automatique (Org., Frankreich)
INTAP       Interoperability Technology Association for Information Processing (Org.)
IO          Input/Output, "I/O"
IOC         Input / Output Controller
IOCCC       International Obfuscated C Code Contest
IONL        Internal Organization of the Network Layer (OSI)
IOP         Input / Output Processor
IOPL        Input Output Privilege Level
IOS         Internetworking Operating System (Cisco)
IOUG        International Oracle Users Group (Org.)
IP          Information Provider
IP          Intelligent Peripheral (IN)
IP          Internet Protocol (RFC 791)
IPC         InterProcess Communications [protocol]
IPCE        InterProcess Communication Environment
IPCS        Interactive Problem Control System
IPD         Intelligent Printer Data
IPDS        IBM Personal Dictation System
IPDS        Intelligent Printer Data Stream (IBM, CCS)
IPDU        Internet Protocol Data Unit
IPDVMRP     IP Distance Vector Multicast Routing Protocol (RFC 1075), "IP-DVMRP"
IPE         Integrated Programming Environment
IPFC        Information Presentation Facility Compiler (IBM, OS/2)
IPI         Intelligent Peripheral Interface [protocol]
IPL         Initial Program Load
IPM         Impulses Per Minute
IPM         Interruptions Per Minute
IPS         Information Processing Standards
IPSEC       Internet Protocol SECurity protocol (IETF)
IPSP        Internet Protocol Security Protocol
IPU         ISDN-datex-P-Umsetzer
IPX         Internet Packet eXchange (Novell)
IPXODI      IPX Open Datalink Interface (Novell)
IPXSPX      IPX / Sequenced Packet eXchange (Novell), "IPX/SPX"
IR          Interface Repository (ORB)
IRC         Internet Relay Chat (RFC 1459)
IRDA        InfraRed Data Association, "IrDA"
IRDS        Information Resource Dictionary System (ANSI, ISO)
IRF         Interger Register File (DEC)
IRLMPTP     InfraRed ??? (IRDA), "IrMLP/TP"
IRM         Information Resources Management
IRQ         Interrupt ReQuest
IRSG        Internet Research Steering Group
IRTF        Internet Research Task Force (IAB)
IRTP        Internet Reliable Transaction Protocol (RFC 938)
ISA         Industry Standard Architecture
ISA         Interactive Services Association (Org.)
ISAM        Index-Sequential Access Mode
ISC         Internet Service Center (Internet provider)
ISDN        Integrated Services Digital Network
ISDNUP      ISDN User Part (Mobile Systems), "ISDN-UP"
ISFUG       Integrated Software Federal User Group (Org.)
ISI         Information Sciences Institute (Org., USA)
ISIS        Intermediate System to Intermediate System protocol (OSI, RFC 1195), "IS-IS"
ISLM        Integrated Services Line Module
ISLU        Integrated Services Line Unit
ISLN        Integrated Services Local Network
ISN         Information Systems Network
ISN         Integrated Systems Network
ISN         Internet Shopping Network (Netzwerk)
ISO         International Standards Organisation (Org.)
ISOC        Internet SOCiety (Org.)
ISODE       ISO Development Environment (OSI)
ISP         Interactive String Processor (BS2000)
ISPF        Interactive System Productivity Facility (IBM)
ISQL        Interactive Structured Query Language
ISR         Interrupt Service Routine
ISSCC       International Solid State Circuits Conference
ISSN        Integrated Special Services Network
IST         Immerse System Technology (VR)
IST         Initial System Test
ISUP        Integrated Services User Part
ISV         Independent Software Vendor
ISV         Independent Solution Vendor (DEC)
ISV         Information Service Vendor
IT          Information Technology
ITA         Interim Type Approval
ITAA        Information Technology Association of America (Org., USA)
ITE         InformationsTechnische Einrichtungen
ITLB        Instruction Tanslation Look-aside Buffer (CPU)
ITM         Information Technology Management
ITMS        Immediate check Truth Maintenance System (AI)
ITR         Internet Talk Radio
ITS         Incompatible Time-sharing System (DEC)
ITU         International Telecommunications Union (Org.)
ITUT        ITU Technical Standards Group (Org., Nachfolge, CCITT), "ITU-T"
ITUSA       Information Technology Users Standards Association (Org., USA)
IU          Integer Unit (CPU)
IUK         Informations- und Kommunikationstechnik, "IuK"
IUMA        Internet Underground Music Archive (WWW)
IV          Initialisation Vector (Verschluesselung)
IVS         IBM Verkabelungs-System
IVTS        International Video Teleconferencing Service
IWC         Inside Wire Cable
IWF         InterWorking Function (IN)
IWS         Intelligent Work-Station
IWV         ImpulsWahlVerfahren
IXC         IntereXchange Carrier (FCC, LATA)
JANET       Joint Academic NETwork (Netzwerk, UK)
JCL         Job Control Language (IBM, OS/360)
JEIDA       Japan Electronics Industry Development Association (Org.)
JES         Job Entry Subsystem (IBM)
JFIF        JPEG File Interchange Format
JFS         Journaled File System (IBM, AIX)
JIPS        JANET Internet Protocol Service
JIS         Japanese Institute of Standards (Org.)
JISC        Japanese Industrial Standards Committee (Org.)
JMSC        Japanese MIDI Standard Committee (Org.)
JOOP        Journal of Object Orientated Programming
JOSS        Joint Object Services Submission
JOVE        Jonathan's Own Version of EMACS
JPEG        Joint Photographics Expert Group (Org.)
JPLDIS      Jet Propulsion Laboratory Display Information System
JSA         Japanese Standards Association (Org.)
JTB         Jump Trace Buffer (CPU)
JTC         Joint Technical Committee (ISO, IEC)
JTM         Job Transfer and Manipulation (ISO 8831/32)
JTMS        Justification based Truth Maintenance System (AI)
JUGHEAD     Jonzy's Universal Gopher Hierachy Excavation And Display
JUNET       Japan Unix NETwork (Netzwerk)
JV          JobVariablen (BS2000)
KB          KiloByte
KBPS        KiloBits Per Second
KBS         Knowledge-Based System
KDC         Key Distribution Center
KDT         Keyboard Display Terminal
KERMIT      Kl-10 Error-free Reciprocal Micro Interconnect over Tty lines
KES         Key Escrow System (Verschluesselung)
KHG         Kernel Hacking Guide (Linux)
KI          Kuenstliche Intelligenz
KNN         Kuenstliche Neuronale Netze
KPI         Kernel Programming Interface (Unix)
KSDS        Key Sequenced Data Set (VSAM)
KSH         Korn SHell (Unix)
KV          KabelVerzweiger
LA          Limited Availability (IBM, OS/2)
LADT        Local Access Data Transport
LAM         Local Area Multicomputer (Parallel Computing)
LAN         Local Area Network
LANE        Local Area Network Emulation (ATM)
LAP         Link Access Procedure (X.25)
LAPB        Link Access Procedure - Balanced (X.25)
LAPD        Link Access Procedure on the D channel (X.25)
LAPM        Link Access Procedure for Modem
LAPS        LAN Adapter and Protocol Support
LASS        Local Area Signaling Service
LAT         Local Area Transport (DEC)
LATA        Local Access Transport Area
LATM        Local Asynchronous Transfer Mode
LAVC        Local Area VAX Cluster
LAWN        Local Area Wireless Network
LBA         Logical Block Addressing (EIDE)
LBT         Local Bus Targets
LBM         Local Bus Master
LCA         Logic Cell Array
LCD         Liquid-Crystal Display
LCD         Loss of Cell Delineation (UNI, ATM)
LCM         LEAF Creation Method (EES, Verschluesselung)
LCN         Logical Channel Numbers
LCP         Link Control Protocol
LCR         Least Cost Routing
LCS         Laboratory for Computer Science (MIT)
LCS         Lotus Communication Server
LCT         Last Compliance Time (GCRA)
LDP         Linux Document Projecta
LDP         Loader Debugger Protocol (RFC 909)
LDT         Local Descriptor Table
LE          LAN Emulation (LANE, ATM)
LEAF        Law Enforcement Access Field (EES, Verschluesselung)
LEAS        LATA Equal Access System
LEC         LAN Emulation Client (LANE, ATM)
LEC         Layered Error Correction (CD)
LEC         Local Exchange Carrier (FCC, LATA)
LED         Light-Emitting Diode
LEN         Low Entry Networking
LES         LAN Emulation Server (LANE, ATM)
LF          Line Feed
LF          Login Facility (DCE)
LFS         Loopback File System
LIC         Licensed Internal Code
LIF         Low Insertation Force (IC)
LIFE        Logistics Interface For manufacturing Environment
LIFO        Last In First Out
LIM         Lotus - Intel - Microsoft (Hersteller)
LIPS        Logical Inferences Per Second
LIS         Logical IP Subnet (RFC 1577)
LISP        LISt Processor
LIU         Line Interface Unit
LLB         Local Location Broker (NCS)
LLC         Logical Link Control (IEEE 802.2, OSI)
LLN         Line Link Network
LMDS        Local Multi-point Distribution System
LME         Layer Management Entity (OSI)
LMS         Library Maintenance System (BS2000)
LMU         LAN Manager for Unix, "LM/U"
LOC         Lines Of Code
LOCIS       Library Of Congress Information System (Internet)
LOF         Loss of Frame (UNI)
LOOPS       LISP Object Oriented Programming System (Xerox)
LOP         Loss of Pointer (UNI)
LOS         Loss of Signal (UNI)
LP          Linear Programming
LPB         [S3] Local Peripheral Bus 
LPC         Linear Predictive Coding (Sprachverarbeitung)
LPEX        Live Parsing eXtensible Editor (IBM, OS/2)
LPF         League for Programming Freedom (Org.)
LPD         Line Printer DAEMON
LPDP        Line Printer DAEMON Protocol (RFC 1179)
LPI         Lines Per Inch
LPT         Line PrinTer
LQ          Letter Quality
LRC         Longitudal Redundancy Check
LRS         Line Repeater Station
LRU         Last Recently Used
LSAPI       Licensed Services Application Program Interface (MS)
LSB         Last Significant Bit (messen)
LSI         Large Scale Integration
LSL         Link Support Layer (ODI)
LSN         Logical Sector Numbers (OS-9)
LST         Linux Support Team [distribution] (Linux)
LTC         Longitudinal Time Code (Video)
LTE         Line Terminating Equipment (SONET)
LU          Logical Unit (NAU)
LU62        Logical Unit 6.2 (IBM), "LU6.2"
LUG         Local Users Group
LUN         Logical Unit Number (SCSI)
LUNI        LANE User Network Interface (LANE, ATM)
LUT         Look-Up Table (RAMDAC)
LVM         Logical Volume Manager (IBM, AIX)
LWL         LichtWellenLeiter (Kabel)
MAC         Mandatory Access Control (MLS)
MAC         Media Access Control (OSI)
MAC         Message Authentication Code
MACOS       MACintosh Operating System (Apple), "Mac OS"
MACS        Modem Access Control System
MAD         Militaerischer AbschirmDienst
MAE         Macintosh Application Environment (Apple, Sun)
MAINSAIL    MAchine INdependent SAIL
MAN         Metropolitan Area Network
MAP         Maintenance Analysis Procedure (IBM)
MAP         Manufacturing Automation Protocol
MAP         Mobile Application Part (Mobile Systems)
MAPI        Messaging Application Program Interface (WOSA)
MAPTOP      Manufacturing Automation Protocol/Technical Office Prot., "MAP/TOP"
MAR         Microprogram Address Register
MAS90       Mittelstands-Anwendungs-System 90 (IBM)
MAU         Medium Attachment Unit (IEEE 802.3, Transciever)
MAU         Multistation Access Unit
MAW         Microsoft At Work
MB          MegaByte
MB          MailBox
MBPS        MegaBits Per Second
MBS         Maximum Burst Size
MCA         Mirco Channel Architecture
MCAV        Modified Constant Angular Velocity
MCBF        Mean Cycle Between Failure
MCC         Manchester Code Converter
MCGA        Multi Color Graphics Adapter
MCI         Media Control Interface
MCI         Measurement Layer Interface (UMA)
MCI         Microwave Communications Incorporated (Hersteller)
MCN         Metropolitan Campus Network
MCP         Master Control Program
MCP         Multiport / Multiprotocol Communication Processor
MCPAS       Master Control Program/Advanced System, "MCP/AS"
MCPC        Multi Channel Per Carrier (Satellit)
MCR         Minimum Cell Rate (UNI, ATM)
MCS         Material Control System
MCS         Multichannel Communications System (Mac)
MCVA        Modified Constant Angular Velocity (Optical Disk)
MD          Mini Disk (Sony)
MDA         Medicated Digest Authentication (HTTP)
MDA         Monochrom Display Adapter
MDI         Medium Dependent Interface (Ethernet)
MDI         Multiplex Device Interface
MDI         Multiple Document Interface (MS, Windows)
MDL         Microstation Development Language (CAD)
MDRC        Manufacturing Design Rule Checker
MDS         Manufacturing Design System
MDT         Mechanical DeskTop (SGI)
MDT         Mittlere DatenTechnik
MERS        Most Economic Route Selection
MESI        Modified - Exclusive - Shared - Invalid
MET         Memory Enhancement Technology, (HP), "MEt"
MF          Multi Frequency
MFC         Microsoft Foundation Classes
MFENET      Magnetic Fusion Energy NETwork
MFI         MainFrame Interactive (IBM)
MFKS        MultiFunktionales KonferenzSystem
MFLOPS      Million FLoating-point OPerations per Second
MFM         Modified Frequency Modulation
MFP         MultiFunction Product
MFS         Macintosh File System
MFS         Message Format Service (IBM, IMS)
MFV         MehrFrequenzwahlVerfahren
MGA         Matrox Graphics Adapter
MH          Modified Huffman (Fax)
MHPCC       Maui High Performance Computing Center (Org., USA)
MHS         Message Handling System (GOSIP, X.400)
MIB         Management Information Base (OSI, RFC 1156)
MIC         Media Interface Connector (FDDI)
MIC         Message Integrity Check
MICE        Modular Integrated Communications Environment
MID         Message IDentifier (ATM)
MIDI        Musical Instrument Digital Interface
MIDL        Microsoft Interface Definition Language (NT)
MIF         Module Interconnection Facility (Proteus)
MILNET      MILitary NETwork (USA)
MIMD        Multiple Instruction stream, Multiple Data stream
MIME        Multipurpose Internet Mail Extensions (RFC 1341/1113/1521)
MINT        Mint is Not TOS (Atari), "MiNT"
MINX        Multimedia Information Network eXchange
MIO         Memory Input/Output (Motorola)
MIPS        Microprocessor without Interlocked Piped Stages
MIPS        Million Instructions Per Second
MIR         Micro-Instruction Register
MIS         Management Information System
MIT         Massachusetts Institute of Technology (Org., USA)
MJ          Modular Jack
MKS         Mortice Kern Systems (Hersteller)
ML          Meta Language
MLE         MultiLine Entry field (IBM, OS2)
MLI         Multiple Link Interface (ODI)
MLID        Multiple Link Interface Driver (ODI)
MLM         Mailing List Manager [software]
MLS         MultiLevel Secure [operating systems]
MLT3        ??? FDDI Signal-Kodierung (Schneider & Koch), "MLT-3"
MM          Mobile Management (Mobile Systems)
MMA         MIDI Manufacturer Association (Org., IMA)
MMA         Microcomputer Managers Association (Org., USA)
MMC         MIDI Machine Control
MMC         MultiMedia Comands (SAM)
MMCD        MultiMedia Compact Disk (Sony, Philips)
MMCDE       MultiMedia Compact Disk - Erasable (Sony, Philips), "MMCD-E"
MMDS        Multi-channel, Multi-point Distribution System
MMPM2       MultiMedia Presentation Manager /2 (IBM, OS/2), "MMPM/2"
MMR         Modified Modified Read (Fax)
MMS         Maximum Message Size
MMU         Memory Management Unit
MNOS        Metal Nitride Oxide Semiconductor (IC)
MNP         Microcom Networking Protocol
MO          Managment Object (OSI)
MOD         Magneto-Optical Disk
MODCA       Mixed Object Document Content Architecture (IBM), "MO:DCA"
MODEM       MOdulator DEModulator
MONET       high data rate MObile interNET
MOO         MUD Object Orientated (Internet)
MOP         Maintenance Operations Protocol (DEC)
MOS         Metal Oxide Semiconductor (IC)
MOSES       Major Open Systems Environment Standards
MOSFET      Metal Oxide Semiconductor Field Effect Transistor (IC)
MOTIS       Message-Orientated Text Interchange Systems
MOWORM      Magneto-Optical Write Once Read Many, "MO-WORM"
MP          Multi Processor
MP          MultiProtocol
MPC         Multimedia Personal Computer
MPDU        Message Protocol Data Unit
MPEXL       ??? (HP), "MPE/XL"
MPEG        Motion Picture Expert Group (Org., ISO 11172-1)
MPI         Message Passing Interface (Parallel Computing)
MPI         Multiprozessor Interconnect Bus
MPIF        Message Passing Interface Forum (Hersteller)
MPOW        Multiple Purpose Operator Workstation
MPP         Massive Parallel Processor
MPP         Message Posting Protocol (RFC 1204)
MPP         Message Processing Program
MPPD        Multi Purpose Peripheral Device
MPR         [National Board for Metrology and Testing] (Org., Schweden)
MPS         Megabytes Per Second
MPS         MultiPage Signal (Fax)
MPSX        Mathematical Programming System eXtended (IBM)
MPT         MultiPort Transceiver
MPTA        Multi Protocol Transport Architecture (IBM, SNA)
MPTN        Multi Protocol Transport Networking (IBM)
MPTS        Multi Protocol Transport Services (IBM, MPTN) 
MPTS2       Multi Protocol Transport Services / 2 (IBM, OS/2), "MPTN/2" 
MPU         MicroProcessor Unit
MPW         Macintosh Programmers Workshop (Apple)
MR          Magneto - Resistive (HDD)
MR          Modified Read (Fax)
MRCF        Microsoft Realtime Compression Format (MS)
MRCI        Microsoft Realtime Compression Interface (MS)
MRNET       Minnesota Regional NETwork (Netzwerk, USA)
MROM        ??? Read Only Memory
MRU         Most Recently Used
MS          MicroSoft (Hersteller)
MS          Mobile Station (Mobile Systems)
MSB         Most Significant Bit (messen)
MSC         MicroSoft C
MSC         Mobile Switching Center (Mobile Systems)
MSCDEX      MicroSoft Compact Disk EXtensions (CD)
MSCM        Multiple Slots on Continuation Mechanism (DQDB)
MSCP        Mass Storage Control Protocol
MSD         Most Significant Digit
MSDN        Macintosh Software Distribution Network (FidoNet)
MSDN        MicroSoft Developer Network (Internet, MS)
MSDOS       MicroSoft Disk Operating System (MS)
MSFP        Managemaent Service Focal Point (IBM)
MSI         Medium Scale Integration
MSISDN      Mobile Station ISDN Number (Mobile Systems), "MS-ISDN"
MSL         Microsoft Software Library (Internet, MS)
MSN         Microsoft Support Network  (Internet, MS)
MSN         Multiple Subscriber Number (Euro-, ISDN)
MSNF        Multiple Systems Networking Facility (IBM)
MSP         Message Send Protocol (RFC 1159)
MSR         Mess-, Steuer- und Regelungssysteme
MSRN        Mobile Station Roaming Number (Mobile Systems)
MSVC        MicroSoft Visual C
MTA         Message Transfer Agent (OSI, X.400)
MTBF        Mean Time Between Failure
MTBRP       Mean-Time-Between-Parts-Replacement
MTC         MIDI Time Code (MIDI)
MTD         Memory Technology Drivers
MTDA        Mean Time Data Availability
MTE         MuTating Engine (Viren), "MtE"
MTP         Message Transfer Part (Mobile Systems)
MTTF        Mean Time To Failure
MTTFF       Mean Time To First Failure
MTTR        Mean Time Trouble Repair
MTTR        Mean Time to Recovery / Repair / React
MTU         Maximum Transmission Unit
MUA         Mail User Agent
MUD         Multi-User Dungeon 
MUeW        MonopolUebertragungsWeg, "MueW"
MUI         Multimedia User Interface (SGI)
MULDEM      MULtiplexer-DEMultiplexer
MULTICS     MULTiplexed Information and Computing Service
MVC         Model View Controller (Smalltalk, GUI)
MVIF        Multi-Vendor Interacting Forum (Org., IN)
MVS         Multiple Virtual Storage
MVS         Multiple Virtual System
MVSSP       Multiple Virtual Storage/System Product, "MVS/SP"
MVSXA       Multiple Virtual Storage/eXtended Architecture, "MVS/XA"
MWS         Matsushita White Skipping (Fax)
MX          Mail eXchange (Unix)
MZ          Mark Zbikowski (MSDOS)
NAB         National Association of Broadcasters (Org., USA)
NAC         Network Administration Center
NACS        Netware Asynchronous Communication Server (Novell)
NACS        Network Access Control System
NAD         Network Access Device
NAG         National Algorithms Group (UK), "NAg"
NAG         Network Architecture Group (Org.)
NAI         Netzwerk Arbeitswelt Informatik (Hersteller)
NAP         Network Access Point (IN)
NAPLPS      North American Presentation Level Protocol Syntax (BBS)
NAS         Netware Access Services (Novell)
NAS         Network Application Services (DEC)
NASI        Netware Asynchronous Service Interface (Novell)
NAT         Network Address Translator (RFC 1631)
NATOA       National Association of Telecommunications Officers & Advisors (Org., USA)
NAU         Network Addressable Unit (IBM, SNA, OSI)
NAU         Network Attachment Unit (GigaB, IP-Router)
NAUN        Nearest Active Upstream Neighbour (MAC)
NBMA        Non-Broadcast Multiple Access (UNI, ATM)
NBP         Name Binding Protocol
NBS         National Bureau of Standards (Org., Vorlaeufer, NIST)
NC          Network Control
NC          Network Coordinator (FidoNet)
NC          Norton Commander (Symantec)
NC          Numerical Control
NCCF        Network Communications Control Facility (IBM)
NCI         Non Coded Information
NCIA        Native Client Interface Architecture (IOS)
NCMOS       N-channel [Silicon Gate Reversed] CMOS
NCN         Nixdorf Communications Network
NCP         Netware Core Protocoll (Novell)
NCP         Network Control Program (IBM) / Protocol / Point
NCP         Non-Carbon Paper
NCS         Network Computing System (HP, Apollo)
NCSA        National Center for Supercomputing Applications (Org., USA)
NCSC        National Computer Security Center (Org., USA)
NCSC        North Carolina Supercomputing Center (Org., USA)
NCSI        Network Communications Service Interface
NCSL        National Computer Systems Laboratory (NIST, Org.)
NCTE        Network Channel-Terminating Equipment
NCTL        National Computer and Telecommunications Laboratory (Org., USA)
NCSNDR      Network Computing System Network Data Representation (HP, Apollo), "NCS NDR"
NDA         Non-Disclosure Agreement
NDA         Norddeutsche DatenAutobahn (Netzwerk)
NDCC        Network Data Collection Center
NDE         NeWS Development Environment
NDIS        Network Driver Interface Specification (3COM, MS)
NDL         Network Database Language
NDMS        Netware Distributed Management Services (Novell)
NDT         Newfoundland Daylight Time (TZ)
NDS         Netware Directory Services (Novell)
NEARNET     New England Academic and Research NETwork (USA, Netzwerk), "NEARnet"
NEC         Nippon Electronic Corporation (Hersteller)
NEFS        Network Extensible File System, "NeFS"
NEST        Netware Embedded Systems Technology (Novell)
NETBEUI     NETBIOS Extended User Interface 
NETBIOS     NETwork Basic Input Output System (IBM, RFC 1001/1002), "NetBIOS"
NETBLT      NETwork BLock Transfer
NETCDF      NETwork Common Data Format
NEWS        Networked Extensible Windowing System, "NeWS"
NEWT        NeWS Terminal, "NeWT"
NEXT        NEw eXtended Technology, "NeXT"
NFS         Network File System (Sun, Unix)
NFSNET      National Science Foundation NETwork (Netzwerk, USA)
NFT         Network File Transfer
NJE         Network Job Entry
NHRP        Next Hop Routing Protocol (X.25)
NHSE        National HPCC Software Exchange (USA)
NIC         Network Information Center (Internet, Org.)
NICD        NIckel CaDmium [batterie], "NiCd"
NICE        Network Information and Control Exchange (DECNET)
NII         National Information Infrastructure (USA)
NIMH        NIckel Metal Hybrid [batterie], "NiMH"
NIR         Network Information Retrieval
NIS         Network Information Service (NSF)
NIS         Network Information System (Unix)
NISDN       Narrowband Integrated-Services Digital Network, "N_ISDN"
NIST        National Institute of Standards and Technology (Org., USA)
NISYP       Network Information System / Yellow Pages, "NIS/yp"
NITOL       Norway-net with IT for Open Learning (Netzwerk)
NIU         Network Interface Unit
NJE         Network Job Entry (BITNET, RSCS)
NLDM        Network Logical Data Manager (IBM)
NLPID       Network Layer Protocol IDentifier (ATM)
NLQ         Near Letter Quality
NLS         Native Language System (OSF)
NLS         Network License Server
NLSP        Netware Link Services Protocol (Novell)
NM          Netzwerk Management
NMA         Network Management Architecture (SNA)
NMC         Network Management Center
NMF         Network Management Forum
NMI         Non-Maskable Interrupt
NMOS        Negative-channel Metal-Oxide Semiconductor (IC)
NMPF        Network Management Productivity Facility (IBM)
NMS         Network Management Station (Novell)
NNI         Network Network Interface
NNI         Network Node Interface (ATM)
NNSC        NSF Network Service Center (Org.)
NNTP        Network News Transfer Protocol (Internet, RFC 977)
NOC         Network Operations Center
NOS         Network Operating System
NPA         Network Printer Alliance (IEEE 1284, IBM, Lexmark, Xerox)
NPDA        Network Problem Determination Application (IBM)
NPH         No Parse Headers (HTML)
NPL         Non-Procedural Language
NPMS        Named Pipes / Mail Slots (MS)
NPSI        Network Protocol Service Interface
NPTN        National Public Telecomputing Network (Netzwerk)
NQS         Network Queuing System
NREN        National Research and Education Network (USA, Netzwerk)
NROFF       New Run-OFF (Unix)
NRZ         Non-Return-to-Zero [recording]
NRZI        Non-Return-to-Zero, Invert to ones
NS          Name Server (Unix)
NSA         National Security Agency (Org., USA)
NSAP        Network Service Access Point (OSI)
NSC         National SemiConductor (Hersteller)
NSC         Network Service Center
NSFIP       NextStep Fuer IntelProzessoren, "NSfIP"
NSFNET      National Science Foundation NETwork (USA, Netzwerk)
NSN         NASA Science Network (USA, Netzwerk)
NSP         Network Services Protocol (DECNET)
NSS         Nodal Switching Subsystem (NSFNET)
NST         Newfoundland Standard Time (TZ)
NT          Netzwerk Terminator (ISDN)
NT          New Technology
NTFS        [windows] New Technology File System
NTIA        National Telecommunications and Information Agency (Org., USA)
NTK         Newton ToolKit (Apple)
NTP         Network Time Protocol (Internet, RFC 1119)
NTS         Network Technical Support
NTS2        Network Transport Services /2 (IBM), "NTS/2"
NTSA        Netware Telephony Services Architecture
NTSC        National Television Standards Committee (Org., USA)
NTSC        Never The Same Color (Slang)
NTT         Nippon Telephone & Telegraph (Org., Japan)
NUA         Network User Address
NUI         Network User Identification (Datex-P)
NVP         Network Voice Protocol
NVRAM       Non-Volatile Random Access Memory
NWNET       NorthWestern states NETwork (Netzwerk, USA), "NWNet"
NYSERNET    New York State Education and Research NETwork (Netzwerk, USA), "NYSERNet"
NZUSUGI     New Zealand Unix System User Group, Inc. (Org.)
OA          Office Automation
OAG         Online Airline Guide (CIS)
OAM         Operations And Management
OARNET      Ohio Academic Resources NETwork (Netzwerk, USA), "OARnet"
OASYS       Office Automation SYStem
OBD         Online Bugs Database (Sun)
OBEX        OBject EXchange (WordPerfect)
OC3         Optical Carrier level 3 (SONET), "OC-3"
OCD         Out-of-Cell Delineation (UNI)
OCE         Open Collaborative Environment (Apple)
OCL         OS/2 inside Class Library
OCLC        Online Computer Library Center (Internet, USA)
OCR         Optical Character Recognition
OCS         Object Compatibility Standard (Motorola)
OCX         OLE Control eXtentions (MS)
OD          Optical Disk
ODA         Office Document Architecture [protocol] (RFC 1197)
ODAPI       Open Database Application Programming Interf. (Borland), "Odapi"
ODBC        Open DataBase Connectivity (WOSA)
ODBMS       Object orientated Database Management System
ODI         Open Datalink Interface (Novell)
ODIF        Office Document Interchange Format (ISO)
ODISS       Optical Digital Image Storage System
ODP         Open Distributed Processing
ODP         OverDrive Processor (Intel)
ODPR        OverDrive Processor Replacement (Intel)
ODS         Offenes Deutsches Schulnetz (Netzwerk)
ODS         Overhead Data Stream
ODT         Open DeskTop (SCO)
OEM         Original Equipment Manufacturer
OEP         Operand Execution Pipelines (Motorola, CPU)
OES         Olivetti EntsorgungsService
OFA         Optimal Flexible Architecture (Oracle)
OH          Off-Hook (MODEM)
OIA         Operator Information Area (IBM)
OID         Object IDentifier (OSI)
OIW         OSI Implementors Workshop (OSI)
OLE         Object Linking and Embedding
OLTM        Optical Line Terminating Multiplexer, "O-LTM"
OLTP        OnLine Transaction Processing
OMA         Object Management Architecture (OMG)
OMF         Object Module Format (IBM, MS)
OMFI        Open Media Framework Interchange
OMG         Object Management Group (HP, Sun, ..., Org.)
OMISTN      Optical Mode Interface SuperTwisted Nematic [LCD], "OMI-STN"
OMR         Optical Mark Reader (Fax)
OMR         Optical Mark Recognition
OMS         Object Management System
OMT         Object Modelling Technique (CASE)
ONA         Open Network Architecture
ONAC        Operations Network Administration Center
ONAL        Off Network Access Line
ONC         Open Network Computing (Sun)
ONCXDR      Open Network Computing eXternal Data Representation, "ONC XDR"
ONE         Open Network Environment
ONI         Operator Number Identification
OOAD        Object Orientated Analysis and Design
OOCTG       Object Orientated COBOL Task Group (CODASYL, Org.)
OODB        Object Oriented Data Base
OODL        Object Orientated Dynamic Language
OOP         Object Orientated Programming
OOPL        Object-Oriented Programming Language
OOPS        Object-Oriented Programming System
OOPS        Object Oriented Program Support
OOPSTAD     Obj. Orient. Programming for SmallTalk Applic. Develop. association (Org.)
OOSA        Object Orientated System Analysis
OOSH        Object-Oriented SHell
OOT         Object-Oriented Technology
OPA         Open Publishing Architecture
OPAC        Online Public Access Catalog
OPI         Open Prepress Standard (DTP)
OR          Originator / Recipient (X.400), "O/R"
ORB         Object Request Broker (OMA)
ORM         Optical Remote Module
OROM        Optical Read Only Memory, "O-ROM"
OS          Operating System
OS2         Operating System /2 (IBM), "OS/2"
OS360       Operating System /360 (IBM), "OS/360"
OS400       Operating System /400 (IBM), "OS/400"
OS9         Operating System - 9 (Microware), "OS-9"
OSA         Open Scripting Architecture (Apple)
OSCRL       Operating System Command Response Language
OSDS        Operating System for Distributed Switching
OSE         Open Software Environment
OSF         Open Software Foundation (HP, DEC, IBM, Org.)
OSF         Operations System Function (IN)
OSF         Oppose Sun Forever (Slang, Org.)
OSI         Open Systems Interconnection (ISO)
OSIRM       Open Systems Interconnection/Reference Model, "OSI/RM"
OSM         Optical Storage Manager (ARMS)
OSME        Open Systems Message Exchange
OSN         Office System Node (IBM, DIA)
OSN         Open Systems Network
OSP         Optical Storage Processor
OSPF        Open Shortest Path First [routing] (Internet, IGP, RFC 1583)
OSTA        Optical Storage Technology Association (Org.)
OSWL2       OS-9 Windows / Level 2, "OSW/L2"
OTA         Office of Technology Assessment (USA, Org.)
OTDR        Optical Time Domain Reflectometer
OTOH        On The Other Hand (DFUE-Slang)
OTP         One Time Password
OTP         One Time Programmable (IC)
OTPROM      One Time Programmable Read Only Memory
OUCL        Oxford University Computing Laboratory
OUG         Occam User Group (Org.)
OWG         Optical WaveGuide
OWORM       Optical Write Once Read Many, "O-WORM"
P2P         Peer to Peer [net]
PA          Precision Architecture (HP)
PABX        Private Automatic Branch eXchange
PAC         Privilege Attribute Certificate (DCE)
PAD         Packet Assembling Disassembling
PAL         Paradox Application Language (Borland)
PAL         Privileged Architecture Library (DEC, Alpha)
PAL         Programmable Array Logic
PAM         Paging Area Memory
PAM         Primary Access Method (BS2000)
PAM         Pulse Amplification Modulation
PAN         Personal Account Number
PAP         Printer Access Protocol
PARC        Palo Alto Research Center (USA)
PAS2        Personal Application System /2 (IBM, DB2/2), "PAS/2"
PAX         Portable Archive eXchange (SCO Unix)
PAX         Private Automatic eXchange
PBI         Phone Based Interface
PBM         Play By Mail [game]
PBX         Private Branch eXchange (Nebenstellenanlage)
PC          Personal Computer
PCA         Power Calibration Area (CD)
PCB         Protocol Control Block (TCP)
PCD         Photo CD (Kodak)
PCDA        Program Controlled Data Acquisition
PCDOS       Personal Computer DOS, "PC-DOS"
PCI         Peripheral Component Interconnect
PCI         Protocol Control Information (OSI, ETSI)
PCIXF       Personal Computer Intergrated eXchange Format (OS/2), "PC/IXF"
PCL         Portable Common LOOPS (CLOS)
PCL         Printer Control Language (HP)
PCL         Programmable Command Language (DEC, TOPS)
PCM         Physical Connection Management (FDDI)
PCM         Pulse Coded Modulation
PCMCIA      Personal Computer Memory Card International Association (Org.)
PCMCIA      People Can't Memorize Computer Industries Acronyms (Slang)
PCMS        Project & Configuration Management System
PCN         Personal Communications Network
PCN         Public Communications Network (Mobile Systems)
PCNFS       Personal Computer Network File System
PCR         Peak Cell Rate (UNI)
PCR         Processor Configuration Register (Motorola, CPU)
PCS         Personal Communications Services
PCSA        Personal Computing Systems Architecture (DEC)
PCTCP       Personal Computer/Transmission Control Protocol, "PC/TCP"
PCTE        Portable Common Tool Environment
PD          Public Domain
PDA         Personal Digital Assistent
PDF         Portable Document Format (Adobe)
PDF         Program Development Facility (IBM)
PDH         Plesiochronous Digital Hierarchy
PDI         Power and Data Interface
PDL         Page / Program Description / Design Language
PDM         Program Development Manager (IBM, ADT)
PDN         Public Data Network (Mobile Systems)
PDO         Portable Distributed Objects (NeXT)
PDP         Plasma Display Panel
PDP         Programmed Data Processor (DEC, PDP-10, ...)
PDS         Processor Direct Slot / Socket (Motorola)
PDSP        Peripheral Data Storage Processor
PDT         Pacific Daylight Time (USA, TZ)
PDU         Protocol Data Unit (OSI)
PE          Phase Encoding
PEARL       Process and Experiment Automation Realtime Language
PEC         Program Execution Control (IBM, OS/2)
PEEK        Partners Early Experience Kit (Taligent)
PEL         Picture ELement
PEM         Privacy Enhanced Mail (PSRG, RFC 1421/1422/1423/1424)
PEP         Packetized Ensemble Protocol (Telebit)
PERL        Practical Extraction and Report Language
PEROM       Programmable Erasable Read Only Memory
PERT        Programm Evolution and Review Technique (Netzplantechnik)
PES         Proposed Encryption Standard
PET         Progressive Educational Technology
PFPU        Processor Frame Power Unit
PGA         Pin Grid Array (CPU)
PGP         Pretty Good Privacy
PHIGS       Programmer's Hierarchical Interactive Graphics System
PHY         Physical Layer Control (FDDI)
PIC         Point in Call (IN)
PIC         Programmable Interrupt Controller
PICS        Plug-in Inventory Control System
PICS        Protocol Implementation Conformance Statements
PICSDCPR    PICS Detailed Continuing Property Record "PICS/DCPR"
PID         Process IDentification number (Unix)
PIIX        PCI IDE/ISA Xcelerator (Intel IC)
PIM         Personal Information Manager
PIN         Personal Identification Number (Banking)
PIN         Processor Independent Netware (Novell)
PINE        Program for Internet News and Email
PING        Packet InterNet Groper (TCP/IP)
PIO         Parallel / Programmed Input/Output
PIP         Packet Interface Port
PIP         Periphal Interchange Program
PIP         Personal Information Processor
PIP         Picture In Picture (Video)
PITA        Pain In The Anatomy / As (DFUE-Slang)
PIU         Path Information Unit (IBM, SNA)
PL1         Programming Language no. 1 (DEC), "PL/1"
PLA         Programmable Logic Array
PLC         Programmable Logic Controller
PLCP        Physical Layer Convergence Procedure / Protocol (UNI)
PLD         Programmable Logic Device
PLIP        Parallel Line Internet Protocol, "PL/IP"
PLL         Phase Locked Loops
PLM         Programming Language for Microcomputers
PLMN        Public Land Mobile Network (Mobile Systems)
PLOU        Physical Layer Overhead Unit (UNI), "PL-OU"
PLS         PhysicaL Signaling
PLV         Production Level Video
PM          Peripheral Module
PM          Presentation Manager (OS/2)
PMA         Physical Medium Attachment
PMA         Program Memory Area (CD)
PMAC        Peripheral Module Access Controller
PMD         Physical layer, Medium Dependant (FDDI, UNI)
PMMU        Paged Memory Management Unit
PMOS        Positive-channel Metal Oxide Semiconductor (IC)
PMP         Point to MultiPoint (UNI)
PMR         Problem Management Report (IBM)
PMU         PowerMeter Unit
PMX         Presentation Manager for the X window system, "PM/X"
PNNI        [phase 0] Private / Public Network Node Interface [protocol] (ATM)
PNPN        Positive Negative Positive Negative [devices]
PNS         PeaceNet Sweden (Netzwerk)
PNW         Personal NetWare (Novell)
POE         PowerOpen Association (Apple, IBM, Motorola, ..., Org.)
POEP        Primary Operand Execution Pipeline (Motorola, CPU), "pOEP"
POF         Plastic Optic fiber (OWG)
POH         Path OverHead (SONET)
POI         Path Overhead Indicator (SONET)
POI         Point Of Information
POI         Point Of Interaction (IN)
POOL        Parallel Object Orientated Language (DOOM)
POP         Package for Online Programming
POP         Point Of Presence (Internet Provider)
POP3        Post Office Protocol 3 (Internet, RFC 1082/1225)
POR         Point Of Return (IN)
POSI        Promoting conference for OSI (Japan, Org.)
POSIX       Portable Operating System for unIX
POST        Power-On Self-Test
POSYBL      PrOgramming SYstem for distriButed appLications
POTS        Plain Old Telephone System (DFUE-Slang)
PP          Physical Plane (IN)
PPC         PowerPC (Apple)
PPC         Program to Program Communication (Apple)
PPI         Pixels Per Inch
PPI         Programmable Peripheral Interface
PPID        Parent Process IDentification number (Unix)
PPL         Pcboard Programming Language (BBS)
PPL         Polymorphic Programming Language (Harvard)
PPM         Pages Per Minute
PPM         Pulse Position Modulation
PPN         Project Programmer Number
PPN         Public Packet Switching
PPP         Point-to-Point Protocol (Internet, RFC 1171)
PPS         ProduktionsPlanung und -Steuerung
PPS         Public Packet Switching [network]
PQFP        Plastic Quad Flat Package (CPU)
PR          Packet Radio
PRAM        Parameter Random Access Memory (Apple), "P-RAM"
PREP        PowerPC REferenz Plattform (IBM, Apple), "PReP"
PREPNET     Pennsylvania Research and Economic Partnership Network (Netzwerk, USA), "PREPnet"
PRF         Problem Report Form (IBM)
PRIDE       PRofitable Information by DEsign (IRM)
PRISM       Parallel Reduced Instruction Set Multiprocessing
PRMD        PRivate Management Domain (X.400, MHS)
PRML        Partial Response - Maximum Likelihood (HDD)
PROFS       PRofessional OFice System (IBM, VM)
PROLOG      PROgramming in LOGic
PROM        Partial Read Only Memory, "P-ROM"
PROM        Programmable Read Only Memory
PROMATS     PROgrammable Magnetic Tape System
PROPAL      PROgrammed PAL
PROTEL      PRocedure Oriented Type Enforcing Language
PROS        ??? (Protokoll) 
PS          Privilege Service (DCE)
PS          PostScript (Adobe)
PS2         Personal System /2, "PS/2"
PSCNET      Pittsburgh Supercomputing Center NETwork (Netzwerk, USA), "PSCnet"
PSD         Programmer's Supplementary Documents (BSD, Unix)
PSDC        Public Switched Digital Capability
PSDN        Packet-Switching Data Network
PSE         Packet Switch Exchange
PSE         Port Switched Ethernet
PSF         Print Services Facility (IBM)
PSIU        Packet Switch Interface Unit
PSK         Phase Shift Keying (DFUE)
PSL         Public Software Library
PSM         Persistent Stored Modules (SQL)
PSM         Personal Software Marketing (IBM)
PSN         Packet / Public Switched Network
PSN         Packet Switch Node (ARPANET, MILNET)
PSOM        Persistency framework in SOMobjects (IBM, DSOM)
PSP         Personal Software Products (IBM)
PSP         Program Segment Prefix
PSP         ProjektStrukturPlan
PSRG        Privacy and Security Research Group (IRTF)
PSS         Packet Switch Services / Stream
PST         Pacific Standard Time (USA, TZ)
PSTN        Public Switched Telephone Network (IN)
PSU         Program Storage Unit
PSW         Program Status Word
PT          Payload Type (ATM)
PTB         Physikalisch-Technische Bundesanstalt (Org.)
PTD         Parallel Transfer Disk / Drive
PTE         Path Terminating Equipment (SONET)
PTI         Payload Type Identifer (ATM)
PTOCA       Presentation Text Object Content Architecture (IBM, MO:DCA)
PTT         Postes, Telegrape et Telephone (Org.)
PTW         Primary Translation Word
PTY         Pseudo-Terminal driver
PU          Physical Unit (NAU)
PUC         Peripheral Unit Controller
PUC         Public Utilities Commission
PUCP        Physical Unit Control Point (IBM, SNA)
PUP         PARC Universal packet Protocol
PVC         Permanent Virtual Circuit
PVC         Permanent Virtual Channel / Connections (ATM)
PVM         Parallel Virtual Machine
PVN         Private Virtual Network
PVP         Packet Video Protocol
PWB         Programmers Work Bench (MS)
PWD         Print Working Directory (Unix)
PWM         Pulse Width Modulation
QAM         Quadrature Amplitude Modulation
QAS         Quasi-Associated Signaling
QBE         Query By Example
QBIC        Query By Image Content (IBM)
QCDP        Quality Color Dithering Modus
QDL         Quadri Data Layer [CD]
QDOS        Quick and Dirty Operating System
QIC         Quarter Inch Committee (Org.)
QLI         Query Language Interpreter
QLLC        Qualified Logical Link Control [protocol] (IBM)
QMF         Query Management Facility (IBM)
QOS         Quality Of Service, "QoS"
QPSK        Quadri Phase Shift Keying [modulation]
QSAM        Queued Sequential Access Method
RACF        Resource Access Control Facility (IBM)
RAD         Rapid Access Disk
RAID        Redundant Arrays of Independent Disks
RAL         ReichsAusschuss fuer Lieferbedingungen (IEC 12119)
RAM         Random Access Memory
RAMDAC      Random Access Memory Digital to Analog Converter
RAND        Rural Area Network Design
RAPS        Real Application on Parallel Systems
RARE        Reseaux Associes pour la Recherche Europeene (Org.)
RARP        Reverse Address Resolution Protocol (Internet, RFC 903)
RAS         Reliability, Availability and Serviceability (IBM)
RAS         Remote Access Software
RAS         Row Address Strobe (IC, DRAM)
RATP        Reliable Asynchronous Transfer Protocol (RFC 916)
RBF         Random Block Filemanager (OS-9)
RBH         Remote Bridge Hub
RBOC        Regional Bell Operating Company (USA)
RCC         Remote Cluster Controller
RCF         Reader's Comment Form (IBM)
RCP         Remote CoPy
RCS         Revision Control System (Unix)
RCTC        Rewritable Consumer Time Code (Video)
RD          Receive Data (MODEM)
RDA         Remote Data Access (ISO)
RDB         Rigid Disk Block (Amiga)
RDBMS       Relational DataBase Management System
RDBMSMIB    Relational DataBase Management System - Management Information Base, "RDBMS-MIB"
RDD         Replacable Database Driver (Clipper)
RDES        Remote Data Entry System
RDI         Remote Defect Indicator (UNI)
RDL         Remote Digital Loopback
RDLAP       Radio Data Link Access Protocol (Modacom), "RD-LAP"
RDM         Reliably Delivered Message
RDN         Relative Distinguished Name (X.500)
RDP         Reliable Datagram Protocol
RDRAM       Rambus Dynamic Random Access Memory
RDS         Radio Digital System
RDS         Remote Data Services
RDT         Radio Digital Terminal
REGEX       REGular EXpression
REGIS       REmote Graphics Instruction Set
REM         Remote Equipment Module
RET         Resolution Enhancement Technology (HP), "REt"
RETM        Rare Earth / Transition Metal (MO), "RE/TM"
REXX        Restructured EXtended eXecutor [language] (IBM, SAA)
RF          Radio Frequency (Mobile Systems)
RFC         Request For Comments (Internet)
RFD         Request For Discussion (Internet), "RfD"
RFE         Request For Enhancement (Internet)
RFI         Request For Information (Internet)
RFP         Request For Proposal (Internet)
RFS         Remote File System (AT&T)
RFT         Revisable Form Text
RGB         Rot Gruen Blau (Farbsystem)
RI          Ring Indicator (MODEM)
RIFF        Resource Interchange File Format
RIG         Related Interest Group
RIP         Raster Image Processor
RIP         Remote Imaging Protocol (BBS)
RIP         Routing Information Protocol (BSD, IGP, RFC 1058)
RIPE        Reseaux IP Europeene (EUnet)
RIPL        Remote Initial Program Load (IBM)
RISC        Reduced Instruction Set Code
RISCOS      RISC Operating System (Acorn), "RISC OS"
RISLU       Remote Integrated Services Line Unit
RJE         Remote Job Entry (IBM, Internet, RFC 407)
RKRM        ROM Kernel Reference Manual (Amiga)
RLE         Run-Length Encoded
RLL         Run Length Limited [encoding]
RLP         Radio Link Protocol (GSM)
RLP         Resource Location Protocol (Internet, RFC 887)
RLT         Remote Line Test
RLV         RingLeitungsVerteiler
RMM         Ring Management Module (Token Ring)
RMON        Remote MONitoring
RMS         Reason Maintenance System (AI)
RMS         Richard Matthew Stallman
RMT         Raw Magnetic Tape (Unix)
RMT         Ring ManagemenT (FDDI)
RNOC        Regional Network Operations Center
RNR         Receive Not Ready (LAPB)
RNUI        Remote Network User Identification (Datex-P)
ROD         Rewritable Optical Disk
ROM         Read Only Memory
ROP         Remote Operations Service (IBM, OS/2)
ROSE        Remote Operations Service Element (OSI, RPC)
ROTFL       Rolling On The Floor Laughing (DFUE-Slang)
RP          Relay Party (IRC)
RPC         Remote Procedure Call (Netwise, Sun)
RPCL        Remote Procedure Call Language
RPG         Report Program Generator
RPL         Remote Program Load
RPM         Radio Packet Modem (Motorola)
RPN         Reverse Polish Notation
RR          Radio Resource Management (Mobile Systems)
RRCM        Reservation Request Control Mechanism (DQDB)
RRDS        Relative Record Data Set (VSAM)
RRIP        Rock Ridge Interchange Protocol (CD, Unix)
RRZE        Regionales RechenZentrum Erlangen (Org.)
RRZN        Regionales RechenZentrum fuer Niedersachsen (Org.)
RS          Registery Service (DCE)
RSA         Random Scheduling Algorithm [protocol]
RSA         Rivest, Shamir und Adleman (Verschluesselung)
RSCS        Remote Spooling Communications Subsystem (IBM, VM)
RSH         Remote / Restricted SHell (TCP/IP)
RSI         Repetitive Strain Injury
RSPC        Reed Solomon Product Code (SDD), "RS-PC"
RSTS        Resource Sharing Time Sharing (DEC)
RSTSE       Resource System Time Sharing/Enhanced (DEC), "RSTS/E"
RSX11D      Resource Sharing eXecutive - 11D (DEC), "RSX-11D"
RSX11M      Resource Sharing eXecutive - 11M (DEC), "RSX-11M"
RTC         Real Time Clock
RTF         Rich Text Format
RTFM        Read The Fucking Manual (DFUE-Slang)
RTI         ReTurn from Interrupt
RTL         Resistor-Transistor Logic
RTMP        Routing Table Maintenance Protocol
RTOSUH      Real Time Operating System-Universitaet Hannover, "RTOS-UH"
RTS         Request To Send (MODEM)
RTSE        Reliable Transfer Service Element (OSI)
RTTI        Run-Time Type Identification (ANSI)
RTU         Real Time Unix
RTV         Real Time Video
RZ          RechenZentrum
RZ          Return-to-Zero [recording]
SA          Source Adress (SNA, Token Ring)
SA          Structered Analysis
SAA         Standard Application Architecture (IBM)
SAAL        Signalling ATM Adaptation Layer (ATM)
SABM        Set Asynchronous Balanced Mode (LABM)
SAC         Single Attachment Concentrator
SAF         Service Access Facilities (Unix)
SAIL        Stanford Artificial Intelligence Laboratory [language] (USA)
SAG         SQL Access Group (Org.)
SAM         SCSI-3 Architecture Model
SAM         Sequential Access Mode / Method
SANE        Standard Apple Numeric Environment
SAP         Service Access Point (OSI)
SAQ         SQL Access Group (Hersteller, Org.)
SAR         Store Address Register
SARPDU      Segmentation And Reassembly Protocol Data Unit (ATM), "SAR PDU"
SATF        Shared Access Transport Facility
SBC         SCSI Block Commands (SAM)
SBC         Single Board Computer
SBCS        Single Byte Character Set
SBCCS       Single Byte Command Code Set [protocol]
SBF         Sequential Block Filemanager (OS-9)
SBP         SCSI-3 serial Bus Protocol (SAM)
SCAF        Service Control Agent Function (IN)
SCAM        SCSI Configured AutoMatically
SCC         SCSI Controller Commands (SAM)
SCC         Serial Communication Controller
SCCP        Signaling Connection Control Part (Mobile Systems)
SCCS        Source Code Control System (Unix)
SCE         Structure Chart Editor
SCEF        Service Creation Environment Function (IN)
SCF         Sequential Character Filemanager (OS-9)
SCF         Service Control Function (IN)
SCO         Santa Cruz Operation (Hersteller)
SCOOPS      SCheme Object Oriented Programming System
SCP         System Control Program
SCPC        Single Channel Per Carrier (Satellit)
SCR         Sustainable Cell Rate (UNI)
SCS         SNA Character String (IBM)
SCSA        Sun Common SCSI Architecture
SCSI        Small Computer Systems Interface
SCX         Specialized Communications eXchange
SD          Starting Delimiter (FDDI, ???)
SD          Structured Design
SD          Super Density [Disk]
SDA         Screen Design Aid (IBM, ADT)
SDD         Super Density Disk (Toshiba, Time Warner)
SDDI        Shielded Distributed Data Interface
SDF         Standard Data Format
SDF         System Dialog Facility (BS2000)
SDH         Synchronous Digital Hierarchy (FDDI, ATM)
SDI         Standard Disk Interface
SDI         Storage Device Interconnect
SDI         Storage Device Interface (Novell, SMS)
SDIS        Switched Digital Integrated Service
SDK         Software Development Kit (MS)
SDL         Specification and Description Language
SDL         System Design Language
SDLC        Synchronous Data Link Control (IBM)
SDLGR       Specification and Description Language / Graphical Representation, "SDL/GR"
SDLP        Standard Device Level Protocol
SDMS        SCSI Device Management System (BIOS)
SDN         Software Defined Network
SDN         Software Distribution Net (FidoNet)
SDOC        Selective Dynamic Overload Controls
SDP         Specialized Data Point (IN)
SDR         Store Data Register
SDRAM       Synchronous Dynamic Random Access Memory
SDS         Switched Data Service
SDS         Synchronous Data Set
SDSC        Synchronous Data Set Controller
SDSCNET     San Diego Supercomputer Center NETwork (Netzwerk, USA), "SDSCnet"
SDSMA       Slotted Digital Sense Multiple Access (Modacom), "S-DSMA"
SDU         Service Data Unit (OSI)
SE          Standard / Special Edition (IBM, OS/2)
SEAL        Simple and Efficient Adaptation Layer (ATM)
SECB        Severely Errored Cell Block (UNI)
SED         Stream EDitor (Unix)
SEDAS       Standardisiertes Einheitliches DatenAustauschSystem
SEQUEL      Structured English QUEry Language (IBM, SQL, Vorlauefer)
SERM        Structured Entity Relationship Model (Datenbanken)
SETL        SEt Theory Language (New York Uni.)
SEU         Source Entry Utility (IBM, ADT)
SF          Service Feature (IN)
SFF         Small Form Factor [committee] (Massenspeicher)
SFPS        Secure Fast Packet Switching
SFT         System Fault Tolerance (Novell)
SFTP        Simple File Transfer Protocol (RFC 913)
SG          Signal Ground (MODEM)
SGA         Shared Global Array (DEC, VMS)
SGC         SCSI Graphic Commands (SAM)
SGI         Silicon Graphics Incorporated (Hersteller)
SGML        Standard Generalized Markup Language (ISO 8879)
SGMP        Simple Gateway Monitoring Protocol (RFC 1028)
SHA         Secure Hash Algorithm (Verschluesseling, NIST)
SHTTP       Secure Hypertext Transfer Protocol, "S-HTTP"
SIB         Service Independent building Block (IN)
SIC         Silicon Integrated Circuit
SID         System IDentification
SIG         Special Interest Group
SIGCAT      Special Interest Group for CD-ROM Applications Technology
SII         Static Invocation Interface
SIM         Subscriber Identification Module (Mobile Systems)
SIMD        Single Instruction stream, Multiple Data stream
SIMIS       SIcheres MIkroprozessor System (SNI)
SIMM        Single Inline Memory Module (IC)
SIP         SCSI-3 Interlocked Protocol (SAM)
SIP         SMDS Interface Protocol (SMDS)
SIPO        Serial In Parallel Out
SIPP        Simple Internet Protocol Plus
SIPP        Single Inline Package Pin (IC)
SIR         Save Instruction Recognition
SIR         Serial InfraRed (HP)
SIR         Substained Information Rate (SMDS)
SIS         Strategic Information System
SISAL       Streams and Iteration in a Single-Assignment Language
SLDC        Synchronous Data Link Control
SLED        Single Large Expensive Drive
SLFP        Shared Frame Buffer Interconnect (ATI, Intel)
SLIP        Serial Line Internet Protocol (RFC 1055), "SL/IP"
SLMR        Silly Little Mail Reader
SLP         Service Logic Program (IN)
SMAE        System Management Application Entity (OSI)
SMAF        Service Management Agent Function (IN)
SMAP        System Management Application Process (OSI)
SMASE       System Management Application Service Element (OSI)
SMB         Server Message Block [protocol] (IBM, Intel, MS)
SMC         SCSI-3 Medium changer Commands (SAM)
SMD         Storage Module Device
SMD         Surface Mounted Device
SMDR        Storage Management Data Requester (Novell, SMS)
SMDS        Switched Multimegabit Data Service
SMDSCNM     SMDS Customer Network Management (SMDS), "SMDS CNM"
SMF         Service Management Function (IN)
SMF         Single Mode Fiber (FDDI)
SMFA        Special Management Functional Element (OSI)
SMG         Special Mobile Group (GSM, Org.)
SMI         Structure and identification of Management Information (OSI, RFC 1155)
SMI         Sun Microsystems Inc. (Hersteller)
SMIT        System Management Interface Tool (IBM, AIX)
SML         Shared Memory Link (TCP/IP)
SML         Siemens Modular Link
SML         Standard Machine Language
SML         Standard Meta Language
SMLNJ       Standard Meta Language / New Jersey, "SML/NJ"
SMM         System Management Mode (CPU)
SMM         System Manager's Manual (BSD, Unix)
SMP         Software Motion Picture (DEC)
SMP         Symmetrisches MultiProzessor [system]
SMPTE       Society of Motion Picture and Television Engineers (Org.)
SMS         Short Message Service (GSM)
SMS         Storage Management Services (Novell)
SMT         Station ManagemenT (FDDI)
SMTP        Simple Mail Transfer Protocol (RFC 821/822/733/1047, TCP/IP)
SNA         Systems Network Architecture (IBM)
SNADS       Systems Network Architecture Distribution Service (IBM, CCS)
SNAP        SubNetwork Access Protocol
SNAP        SubNetwork Attachment Point (IEEE 802.1a)
SNAP        System and Network Administration Program
SNCP        Single Node Control Point (IBM)
SNF         Server Natural Format
SNI         Siemens Nixdorf Informationssysteme [AG] (Hersteller)
SNI         SNA Network Interconnection (IBM, VTAM)
SNI         Subscriber Network Interface (SMDS)
SNMP        Simple Network Management Protocol (RFC 1157)
SNOBOL      StriNg Orientated symBOlic Language
SNR         Signal to Noise Ratio
SNTP        Simple Network Time Protocol (RFC 1769)
SOA         Start Of Authority record (DNS)
SOEP        Secondary Operand Execution Pipeline (Motorola, CPU), "sOEP"
SOH         Start Of Header
SOHO        Small Office / Home Office [market]
SOM         Structered Object Method
SOM         System Object Model (IBM)
SONDS       Small Office Network Data System
SONET       Synchronous Optical NETwork (FDDI, ATM)
SOP         Standard Operating Procedure
SP          Signal Processor
SPA         Software Publishers Association (Org.)
SPAG        Standards Promotion and Application Group (OSI, Org., Hersteller, Europa)
SPARC       Scalable Processor ARChitecture
SPC         SCSI-3 Primary Commands (SAM)
SPC         Stored Program Control
SPCF        Service Point Command Facility (IBM)
SPDL        Standard Page Description Language (ISO)
SPDU        Session Protocol Data Unit (OSI)
SPEC        System Performance Evaluation Corporation (Org.)
SPI         SCSI-3 Parallel Interface (SAM)
SPI         Serial Peripheral Interface
SPI         Service Provider Interface (WOSA)
SPKM        Simple Public-Key [GSS-API] Mechanism (GSS)
SPL         Set Priority Level (Unix)
SPL         System Programming Language
SPM2        System Performance Monitor /2 (IBM, OS/2), "SPM/2"
SPOOL       Simultaneous Peripheral Operations OnLine
SPP         Scalable Parallel Processing (Intel)
SPS         SpeicherProgrammierbare Steuerungstechnik
SPT         Sectors Per Track
SPU         System Processing Unit
SPUCDL      Serial Peripheral Unit Controller/Data Link, "SPUC/DL"
SPUD        Storage Pedestal Upgrade Disk / Drive
SPX         Sequenced Packet eXchange (Novell)
SQFP        Shrink Quad Flat Package (CPU)
SQL         Structured Query Languge (ISO 9075)
SQLCLI      SQL Call Level Interface (SAG), "SQL/CLI"
SQLDS       Structured Query Language/Data System (IBM), "SQL/DS"
SRAM        Static Random Access Memory
SRC         Standard Context Routing (Modacom)
SRE         Self Routing switch Element (ATM)
SRF         Service Resource Function (IN)
SRN         Source/Recipient Node (IBM)
SRP         Source Routing Protocol (IBM)
SRPI        Server Requester Programming Interface (IBM)
SRVIFS      SeRVer Installable File System (IBM)
SS          Single Sided (Disks)
SSA         Serial Storage Architecture (IBM)
SSADM       Structured System Analysis and Design Method (Datenbanken)
SSAP        Session Service Access Memory
SSAP        Source link SAP
SSBAM       Single SideBand Amplitude Modulation
SSC         SCSI Stream Commands (SAM)
SSCF        Service Specific Coordination Function (ATM)
SSCOP       Service Specific Connection Orientated Protocol (ATM)
SSCP        Service Switching & Control Point (IN)
SSCP        System Services Control Point (NAU)
SSCS        Service Specific Convergence Sublayer (ATM)
SSD         Solid State Disk
SSDU        Session Service Data Unit
SSE         Software Support Engineer
SSF         Service Switching Function (IN)
SSI         [Schwedisches Strahlenschutzinstitut] (Schweden, Org.)
SSI         Small Scale Integration
SSIMM       Single [RAS] Single Inline Memory Module (IC), "S-SIMM"
SSL         Secure Socket Layer (TCPIP)
SSP         Service Switching Point (IN)
SSP         Silicon Switch Processor (Cisco)
SSP         Standard Printer Port
SSP         Switch to Switch Protocol (DLSW, RFC 1795)
SSP         System Stack Pointer
SSSNA       Server to Server Systems Network Architecture (Banyan VINES), "SS/SNA"
SST         Simple SIPP Transition (Internet)
SSTP        Screened Shielded Twisted Pair (Kabel), "S/STP"
STAR        Shareware Trade Association and Resources (Org.)
STB         Software Technical Bulletin
STD         State Transition Diagram
STDA        StreetTalk Directory Assistance (Banyan VINES)
STDM        Synchronous Time Division Multiplexer
STE         Section Terminating Equipment (SONET)
STING       Software Technology Interest Group (CERN, Org.)
STIX        SmallTalk Interface to X (GNU)
STM         Synchronous Transfer Mode (ATM)
STNLCD      SuperTwisted Nematic Lyquid Crystal Display, "STN-LCD"
STP         Service Transaction Program (IBM)
STP         Shielded Twisted Pair (Kabel)
STP         Signal Transfer Point (IN)
STP         Spanning Tree Protocol (IEEE 802.1)
STX         Start of TeXt
SUG         Sun User's Group (Org.)
SUNET       Swedish University NETwork
SUNVIEW     SUN's Visual Integrated Environment for Workstations
SURANET     Southeastern Universities Research Association NETwork (Netzwerk, USA), "SURAnet"
SUSE        Software Und SystemEntwicklung [distribution] (Linux), "S.u.S.E."
SUSP        System Use Sharing Protocol
SUTP        Screened Unshielded Twisted Pair (Kabel), "S/STP"
SUTT        Single User Test Tools
SV          StandortVerteiler (Kabel, EN 50 173)
SVC         Switched Vitual Circuit (IBM)
SVC         Switched Virtual Channel / Connections (ATM)
SVD         Schweizerische Vereinigung fuer Datenverarbeitung (Org.)
SVGA        Super Video Graphics Array
SVID        System V Interface Definition (Unix)
SVR4        System V Release 4 (Unix)
SWAN        Sun Wide Area Network
SWEDAC      [Staatliches Amt fuer Technische Akkreditierung] (Schweden, Org.)
SWI         SoftWare Interrupts (RISC, OS)
SWIFT       Society for Worldwide Interbank Financial Telecommunication (Org.)
SWISH       Simple Web Indexing System for Humans (WAIS, WWW)
SYSAD       SYStem ADministrator, "SysAd"
SYSOP       SYStem OPerator, "SysOp"
TA          TerminalAdapter
TAC         Terminal Access Controller (ARPANET, MILNET)
TACACS      Terminal Access Controller Access Control System (RFC 1492)
TAE         Telekommunikations-AnschlussEinheit
TALAE       TALigent Application Program (Taligent), "TalAE"
TALDE       TALigent Development Environment (Taligent), "TalDE"
TALOS       TALigent Object Services (Taligent), "TalOS"
TAN         Table Area Network
TAN         TransAction Number (Banking)
TAP         Terminal Access Point (Kabel)
TAPI        Telephony Application Program Interface (Intel, MS, WOSA)
TAT         Theoretical Arrival Time (GCRA)
TB          TeraByte
TBC         Time Base Corrector (Video)
TC          Transmission Convergence
TCAM        TeleCommunications Access Method (IBM)
TCAP        Transaction Capabilities Application Part (Mobile Systems, IN)
TCL         Tool Command Language
TCM         Thermal Conduction Module
TCM         Time Compression Multiplexer
TCM         Trellis Coded Modulation
TCO         [Schwedische Angestelltengewerkschaft] (Schweden, Org.)
TCPACO      TCP Alternate Checksum Option (RFC 1146), "TCP-ACO"
TCPBEUI     Transmission Control Protocol BIOS Extended User Interface
TCPC        The Clean Personal Computer group (Org., Hersteller, Grafikkarten)
TCPIP       Transmission Control Protocol/Internet Protocol (RFC 793), "TCP/IP"
TCPLDP      TCP extensions for Long Delay Paths (RFC 1072)
TCSEC       Trusted Computer System Evaluation Criteria (Orange Book)
TCSH        Trustedi C SHell (Unix)
TD          Transmit Data (MODEM)
TDC         Tape Data Controller
TDC         Terrestrial Data Circuit
TDD         Telecommunications Device for Deaf
TDM         Telekom Designed Networks
TDM         Time Division Multiplexing
TDMA        Time Division Multiple Access (Mobile Systems)
TDP         Triton Data Path (Intel Triton IC)
TDR         Time Domain Reflectometer
TEAMA       Taiwanese Electric Appliance Manufacturer's Association (Org.)
TECO        Tape / Text Editor and COrrector (MIT)
TEDIS       Trade Electronic Data Interchange Systems (EG-Programm, EDI)
TELNET      TELephone NETwork (Unix)
TEN         TransEuropean Networks
TERMCAP     TERMinal CAPability (Unix)
TERMINFO    TERMinal INFOrmation (Unix)
TFI         Terminal Facility Identifier (BTX)
TFP         Tops Filing Protocol
TFS         Translucent File System
TFT         Task File Table (BS2000)
TFT         Thin Film Transistor (LCD)
TFTP        Trivial File Transfer Protocol (UDP, RFC 783)
TFTR        ??? (Protokoll) 
TGC         Terminal Group Controller
THENET      Texas Higher Education NETwork (Netzwerk, USA), "THEnet"
THT         Token Holding Timer (FDDI, Token Ring)
TI          Texas Instruments (Hersteller)
TIA         Telecommunications Industries Associations (Org.)
TIA         Thanks In Advance (DFUE-Slang)
TIA         The Internet Adapter [software]
TIES        Time Independent Escape Sequence (MODEM)
TIFF        Tag / Tagged Image File Format
TIGA        Texas Instruments Graphics Adapter (Texas Instruments)
TINA        Telecommunication Information Network Agent (IN)
TINAC       TINA Consortium (Org., IN), "TINA-C"
TIP         Terminal Interface Processor (ARPANET)
TIP         Transputer Image Processing
TIS         Tools Interface Standard (SCO Unix)
TKO         TeleKommunikationsOrdnung
TKV         TeleKommunikationsVerordnung
TLA         Three Letter Acronym (Slang)
TLB         Translation Look-aside Buffer
TLI         Transport Level Interface (AT&T)
TLN         Trunk Line Network
TLP         Transmission Level Point
TM          TradeMark
TMF         Tivoli Management Framework
TMN         Telecommunication Management Network (IN)
TMR         Transient Memory Record
TMR         Triple Modular Redundancy
TMS         Time Multiplexed Switch
TMS         Truth Maintenance System (AI)
TMSC        Tape Mass Storage Control (DEC)
TNC         Threaded Neill Concelman [connector]
TNLCD       Twisted Nematic Liquid Crystal Display, "TN-LCD"
TNPC        Taiwanese New Pc Consortium (Org.)
TOC         Table Of Contents (CD)
TODS        Transactions on Database Systems (ACM)
TOMS        Transactions on Mathematical Software (ACM)
TOOIS       Transactions on Office Information Systems (ACM)
TOP         Technical and Office Protocols
TOPICS      Total On-Line Program and Information Control System
TOPLAS      Transactions on Programming Languages and Systems (ACM)
TOPS        Timesharing OPerating System (DEC)
TOS         The Operating System
TOS         Tramiel Operating System
TP          Transaction Processing
TP          Turbo Pascal
TP          Twisted Pair (Netzwerk)
TP0         Transport Protocol class 0 (OSI)
TP4         Transport Protocol class 4 (OSI)
TPC         Transaction Processing Council (Hersteller DBMS)
TPD         Technical Product Documentation
TPDU        Transport Protocol Data Unit (OSI)
TPE         Twisted Pair Ethernet
TPF         Transaction Processing Facility (IBM)
TPI         Tracks Per Inch
TPPMD       Twisted Pair Physical layer Medium Dependent, "TP-PMD"
TPRM        ??? (Sun)
TPS         Transactions Per Second (DBMS)
TPT         Twisted Pair Transceiver
TRIB        Transfer Rate of Information Bits
TRIPS       Trade Related aspects of Intellectual Property rightS (GATT)
TROLI       Token Ring Optimized Link Interface (IBM)
TRP         Token Ring serial Port
TRR         Token Ring Repeater
TRT         Token Rotation Timer (FDDI, Token Ring)
TSA         Target Service Agent (Novell, SMS)
TSAP        Transport Service Access Point (OSI)
TSAPI       Telephony Server Application Programmer Interface (AT&T, Novell)
TSC         Triton System Controller (Intel, Triton, IC)
TSD         ??? (Farbsystem)
TSDU        Transport Service Data Unit
TSE         Technical Support Engineer (Sun)
TSI         Time Slot Interchanger
TSN         Task Sequence Number (BS2000)
TSO         Time Sharing Option
TSOCMS      Time Sharing Option/Conversational Monitor System (IBM, VME), "TSO/CMS"
TSP         Time Synchronization Protocol
TSPI        TAPI Service Provider Interface (TAPI)
TSR         Terminate and Stay Resident
TSS         Task State Segment (Intel)
TSS         Time-Sharing System
TSTN        Triple SuperTwisted Nematic [LCD]
TSW         TeleSoftWare (BTX)
TTL         Time To Live (Internet)
TTL         Transistor Transistor Logic
TTRP        Time Token Rotation Protocol (FDDI)
TTRT        Target Token Rotation Time (FDDI)
TTS         Trouble Ticketing System
TTY         TeleTYpe
TUC         Total User Cell count (UNI)
TUCD        Total User Cell Difference (UNI)
TUG         TeX User's Group (Org.)
TWAIN       Technology Without An Important Name (Schnittstelle)
TZ          Time Zone
UA          Unnumbered Acknowledgement
UA          User Agent (OSI)
UAB         Unix Appletalk Bridge
UAC         Universal Access Control (IBM)
UAE         Unknown Applikation Error (Windows)
UAF         User Authorization File
UAPDU       User Agent Protocol Data Unit
UART        Universal Asynchronous Receive and Transmit
UBA         UniBus Adapter (DEC)
UBNI        Ungermann-Bass Network Interface
UDF         User Defined Function
UDPIP       User Datagram Protocol / Internet Protocol, "UDP/IP"
UDP         User Datagram Protocol (Internet, RFC 768)
UFS         Universal File System
UFST        Universal Font Scaling Technology (Agfa)
UI          User Interface
UIC         User Identification Code
UID         Unit IDentifier (Verschluesselung, EES)
UID         User IDentification
UIL         User Interface Language
UIMS        User Interface Management System
ULA         Uncommitted Logic Array
ULANA       Unified Local Area Network Architecture
ULP         Upper Layer Protocols (FC)
UMA         Universal Measurement Architecture (Unix)
UMA         Upper Memory Area (Intel)
UMADS       Universal Measurement Architecture Data Storage (UMA)
UMB         Upper Memory Block (Intel)
UMC         United Microelectronics Corporation (Hersteller)
UME         UNI Management Entity (UNI, ILMI)
UMTS        Universal Mobile Telecommunications System (IN, Mobile Systems)
UNC         Universal Naming Convention (IBM, MS)
UNEDIFACT   United Nations EDIFACT (ISO 9735), "UN/edifact"
UNI         Universal Network Interface (Cogent)
UNI         User Network Interface
UNIVAC      UNIVersal Automatic Computer
UNMA        Unified Network Management Architecture
UNSM        United Nations Standard Message, (UN/edifact)
UPAM        User Primary Access Method (BS2000)
UPC         Universal Product Code (EAN)
UPC         Usage Parameter Control (ATM)
UPM         User Profile Management (IBM)
UPN         Umgekehrte Polnische Notation
UPP         Universal Procedure Pointer (Apple Events)
UPPS        Universal Portable Protocol Stack / Support (Schneider & Koch)
UPS         Uninterruptable Power Supply
UPS         Unix Print Services
UPT         Universal Personal Telecommunications (IN)
UPT         Universelle Personengebundene Telekommunikation (IN)
URA         Uniform Resource Agent (WWW)
URC         Uniform Resources Characteristics (URI, WWW)
URC         Uniform Resource Citation (WWW)
URI         Uniform Resource Identifier (WWW, RFC 1630)
URL         Uniform Resource Locator (WWW, RFC 1738)
URN         Uniform Resource Name (WWW , RFC 1737)
URSN        Unique Resource Serial Number (URI, WWW)
USART       Universal Synchronous Asynchronous Receiver / Transmitter
USD         User's Supplementary Documents (BSD Unix)
USENET      USErs' NETwork
USG         Unix Support Group (Org.)
USITA       United States Independent Telephone Association (Org.)
USL         Unix Systems Laboratories (AT&T)
USP         User Stack Pointer
USR         User Service Routines
USRT        Universal Synchronous Receiver/Transmitter
USV         Unterbrechungsfreie Strom-Versorgung
UTC         Universal Time Coordinates (TZ)
UTLB        Unified Translation Look-aside Buffer (CPU)
UTM         Universeller TransaktionsMonitor (BS2000)
UTP         Unshielded Twisted Pair (Kabel)
UUCICO      Unix to Unix Copy Incoming Copy Outgoing
UUCP        Unix to Unix Copy Protocol
UUG         Unix User Group (Org.)
VA          Virtual Acoustic
VAFC        VESA Advanced Feature Connector (VESA)
VAGI        VESA Advanced Graphic Interface (VESA)
VAM         Verband der Anbieter von Mobilfunkdiensten (Org.)
VAN         Value Added Network
VANS        Value Added Network Services
VAP         Value Added Process
VAPI        Virtual [ISDN] Application Programming Interface (ISDN, CAPI)
VAR         Value-Addes Reseller
VAS         Value Added Services
VASCAR      Visual Average Speed Computer And Recorder
VAST        Virtual Archive Storage Technology
VAX         Virtual Address eXtension (DEC)
VB          Visual BASIC (MS)
VBA         Visual BASIC for Applications (MS)
VBE         VGA standard BIOS Extenstions (VESA)
VBN         Vermittelndes Breitband-Netz
VBR         Variable Bit Rate
VBX         Visual Basic eXtentions (MS)
VC          Virtual Channel / Circuit / Console
VCA         Voltage Controlled Amplifier
VCI         Virtual Channel / Connection Identifier (ATM)
VCL         Virtual Channel Link (UNI, ATM)
VCL         Visual Component Library (Borland)
VCOS        Visible Caching Operating System (DSP)
VCPI        Virtual Control Program Interface (DOS)
VCS         Virtual Circuit System
VDE         Verein Deutscher Elektriker (Org.)
VDI         Verein Deutscher Ingenieure (Org.)
VDI         Video Device Interface (Intel)
VDI         Virtual Device Interface
VDM         Virtual DOS Machine (OS/2)
VDS         Virtual DMA Services
VDU         Visual Display Unit
VE          Virtual Environment (VR)
VERNET      Virginia Educational Research NETwork (Netzwerk, USA), VERnet"
VERONICA    Very Easy Rodent-Orientated Netwide Index of Computerized Archives (Internet)
VESA        Video Electronics Standards Association (Org.)
VEST        VAX Environment Software Translator
VFEA        VMEbus Futurebus+ Extended Architecture
VFS         Virtual File System
VFW         Video fuer Windows (MS), "VfW"
VGA         Video Graphics Array
VGF         100VG anylan Forum (Hersteller)
VGI         Virtual Graphics Interface
VHDL        VHSIC Hardware Description Language
VHSIC       Very High Speed Integrated Circuit
VI          VIsual editor (Unix)
VIC         Vendor Independent ??? (VIM)
VIM         Vendor Independent Messaging (Lotus, Borland, IBM, Novell)
VINCE       Vendor Independent Network Control Entity
VINES       VIrtual NEtwork Software (Banyan VINES)
VIO         Virtual Input/Output
VIP         VLB - ISA - PCI [board]
VIROS       VIRtual memory Operating System (DEC)
VITC        Vertical Interval Time Code (Video)
VLB         VESA Local Bus
VLDB        Very Large DataBase
VLF         Virtual Lookaside Facility (IBM)
VLIW        Very Long Instruction Word (CPU)
VLM         Virtual Loadable Modul (Novell)
VLR         Visitor Location Register (Mobile Systems)
VLSI        Very Large Scale Integration
VM          Virtual Machine (IBM)
VM          Virtual Memory (OSF)
VMB         Virtual Machine Boot (IBM, OS/2)
VMCF        Virtual Machine Communications Facility
VMCMS       Virtual Machine / Conversational Monitor System, "VM/CMS"
VME         Virtual Machine Environment
VMM         Virtual Machine / Memory Manager
VMOS        Vertical Metal Oxide Semiconductor (IC), "V-MOS"
VMS         Virtual Memory [operating] System (DEC)
VMS         Voice Mail System
VMS         Voice Management System
VMSP        Virtual Machine / System Product, "VM/SP"
VMT         Virtual Method Table
VMTP        Versatile Message Transaction Protocol (RFC 1045)
VNA         Virtual Network Architecture  (ATM)
VNCA        VTAM Node Control Application (IBM)
VNF         Virtual Network Feature
VNL         Via Net Loss plan
VNLF        Via Net Loss Factor
VNSM        VINES Network and Systems Management (Banyan VINES)
VOD         Video On Demand
VOI         Verband Optischer Informationssysteme (Org.)
VOODOO      Versions Of Outdated Documents Organized Orthogonally (Mac)
VP          Virtual Path (ATM)
VPA         VAX Performance Advisor (DEC, VMS)
VPC         Virtual Path Connection (ATM)
VPI         Virtual Path Identifier (ATM)
VPL         Virtual Path Link (UNI, ATM)
VPMI        Virtual Protected Mode Interface
VPN         Virtual Private Network
VPT         Virtual Path Terminator (UNI, ATM)
VR          Virtual Reality
VRAM        Volatile Random Access Memory
VRD         Virtual Retinal Display (VR)
VRML        Virtual Reality Markup Language (VR)
VROOMM      Virtual Realtime Object Oriented Memory Manager
VRS         Voice Response System
VSA         Virtual Server Architecture
VSAM        Virtual Storage Access Method
VSAT        Very Small Aperture Terminal (Satelliten)
VSE         Virtual Storage Extended (IBM)
VSEESA      Virtual Storage Extend. Enterprise Systems Architecture, "VSE/ESA"
VSESP       Virtual Storage Extended/System Product ??? (IBM), "VSE/SP"
VSI         Verband der SoftwareIndustrie deutschland (Org.)
VSM         ??? (Norm f. Tastatur)
VSM         Virtual Storage Management
VSN         Volume Serial Number (BS2000)
VSR         Voice Storage and Retrieval
VSS         Voice Storage System
VST         VermittlungsSTelle (Telekom), "VSt"
VT          Virtual Terminal
VTAM        Virtual Telecommunications Access Method (IBM, SNA)
VTI         Virtual Terminal Interface
VTP         Virtual Terminal Protocol
VTS         Video Teleconferencing System
VU          Virtual User
VUE         Visual User Environment (HP)
VUP         VAX Units of Performance, "VUPs"
VV          Virtuelle Verbindung
WAIS        Wide Area Information Service (Internet)
WAITS       Westcoast Alternative to ITS
WAN         Wide Area Network
WAP         Wissenschaftliche ArbeitsPlatzrechner
WATS        Wide Area Telephone Service
WB          WorkBench (Amiga)
WBC         Wide Band Channel (FDDI)
WBS         WissensBasierte Systeme (KI)
WCGA        World Computer Graphics Association (Org.)
WCS         Writable Control Store (VAX)
WD          Western Digital (Hersteller)
WDK         Word Developers Kit (MS)
WDM         Wavelength Division Multiplexing [protocol]
WDP         WatchDog Process
WDS         WatchDog Server
WDT         Watch Dog Timer
WESTNET     WESTern regional NETwork (Netzwerk, USA), "Westnet"
WFC         Wait for Caller (BBS)
WFW         Windows For Workgroups, "WfW"
WIMP        Window, Icon, Menu, Pointing device
WIN         WIssenschaftsNetz
WINS        Windows Internet Name Service (MS)
WIZOP       WIzard sysOP, "WizOp"
WKS         Well Known Services (Internet)
WLO         Windows Library Objects
WLS         White Line Skip (Fax)
WNIM        Wide area Network Interface Module
WORDIA      WORD Internet Assistent (MS)
WORM        Write Once Read Many (CD)
WOSA        Windows Open System Architecture (MS)
WOSAXCEM    WOSA eXtensions for Control, Engineering and Manufacturing
WOSAXFS     WOSA eXtensions for Financial Services, "WOSA X FS"
WOSAXRT     WOSA eXtensions for Real-Time market data
WPS         Word Processing Software
WPS         WorkPlace Shell (OS/2)
WRAM        Window Random Access Memory (Samsung, Matrox)
WRT         With Respect To (DFUE-Slang)
WSF         Work Station Feature (IBM)
WSF         Work Station Function (IN)
WTS         Web Transaction Security (WWW)
WVNET       West Virginia Network for Educational Telecomputing (Netzwerk, USA)
WWW         World Wide Web (Internet)
WYSBYGI     What You See Before You Get It (DTP)
WYSIWYG     What You See Is What You Get (DTP)
XA          eXtended Architecture (IBM)
XAPIA       X.400 API Association (Org.)
XCCI        X Common Client Interface, "X CCI"
XCHS        eXtended Cylinder Head Sectors (EIDE)
XCMOS       eXtended CMOS
XCMS        X Color Management System, "Xcms"
XCOFF       eXtended Common Object File Format (Unix)
XDMCP       X Display Manager Control Protocol
XDR         eXternal Data Representation (RPCL, Sun)
XFE         X Front End
XGA         eXtended Graphics Adapter
XMAPI       eXtended Messaging Application Program Interface
XMI         eXtended Memory Interconnect (DEC)
XMS         eXtended Memory Specification
XMS         eXtended Multiprocessor operating System
XNS         Xerox Network Services / Systems / Standard
XNSCP       XNS IDP Control Protocol (RFC 1764)
XNSIDP      Xerox Network Services - Internet Datagram Protocol, "XNS-IDP"
XPS         eXPert System (AI)
XT          eXtended Technology
XUI         X-windows User Interface
XUMA        eXpertensystem UMweltgefaehrlichkeit von Altlasten (KI)
YABA        Yet Another Bloody Acronym (Slang)
YACC        Yet Another Compiler Compiler (Unix)
YCPS        Yale Center for Parallel Supercomputing (Org.)
ZAPP        Zero Assignment Parallel Processor
ZBR         Zone Bit Recording
ZCAV        Zone Constant Angular Velocity
ZE          Zentraleinheit
ZIAM        Zentrum fuer Industrielle Anwendungen Massiver parallelitaet (Org.)
ZIB         [Konrad-Zuse] Zentrum fuer Informationstechnik Berlin (Org.)
ZIF         Zero Insertation Force (IC)
ZIL         Zork Implementation Language (Infocom)
ZIP         Zigzag Inline Package (VRAM)
ZIP         Zone Information Protocol
ZMH         Zone Mail Hour (FidoNet)
ZZF         Zentralamt zur Zulassung von Fernmeldeeinrichtungen (Org.)