Commodore 900
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The Commodore 900 was a prototype microcomputer originally intended for business computing and, later, as an affordable UNIX workstation. It was to replace the aging PET/CBM families of personal compu
A picture of a rare Commodore 900
MOS Technology 8563
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The 8563 Video Display Controller was an integrated circuit produced by MOS Technology. It was used in the Commodore 128 computer to generate an 80-column RGB video display, running alongside a VIC-II
Commodore 900
…for a number of connected character-based terminals. For the text-only configuration and for lower-resolution graphical output, the system employed the MOS Technology 8563 video controller, this supporting an 80 × 25 colour textual display or a 600 × 400 colour graphical display. The high-resolution display option employed…
The 8563 VDC and related ICs on the C128 motherboard.