pproton.jpg (22311 bytes)

Computer Proton Compactboard 80
Brand Proton Electronics
CPU Z80 H  8MHz
Memory 128 Kb
O.S. COMBIDOS
Year 1984
Additional information
  • Z80H 8MHz, is twice as fast as the standard Z80A. The speed could be brought back to 6MHz
  • There are two 5,25 inch Quad Density floppy drives, the system also accepts 8 and 3,5 inch floppy drives (max. 4 drives).
  • COMBIDOS made it possible to READ, WRITE and FORMAT almost any kind of CP/M disc (also single, double and quad density diskettes). With a utility you could tell the computer that drive A should simulate type (...) and drive B type (...), and then you could simply  exchange files between different systems. It came standard with a list of about 30 different CP/M formats, which could easily be altered and extended (my current list has got 112 entries).
  • runs standard CP/M 2. and CP/M 3 programs.
  • connectors:
    • parallel
    • 2 x serial
    • video (video and RGB in one 6 pin. DIN )
    • keyboard
    • expansion bus
  • graphics resolution 160 x 120, text 80 columns 2 colours, 40 columns 8 colours.

 

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