A friend of mine owned one of these systems. It wasn't very advanced, and was seen by many as Commodore's attempt to "dumb down" the C64 to a sub-$100 price range. It contained 64K memory, of which 60k was available under the basic, and allowed 128 colour pixel range, (16 colours at 8 intensity levels). The C16 plus 4 also contained version 3.5 of Basic. The system also had a basic stab at the home-office market by including four basic applications built into the ROM- a database, a word processor, a spreadsheet and a machine language monitor. A new disk drive had also been developed specifically for the machine. Known as the 1551, the drive connected to the C-16 series through the memory expansion port, and was reported to be up to 5 times faster than the 1541. This system was not as successful as the C64, although in many ways it was superior, and only goes to show Commodores' questionable business practices, by trying to replace the C64 when it was at its peak. It did play a brilliant game of Llamatron though!