The Proton PC-1, PC-2 and PC-3 are 6502 based computer in a keyboard case. Produced by the Dutch electronics firm Post Electronics, later known for the Ultiboard software.
Targeted at students an hobbyists.
A full size keyboard, a 6502 at 1 MHz, a VIA 6522 and optional cards for extra ROM (with Basic), video display cassette interface.
A 16 character alphanumeric display is built in above the keyboard.
One of my Protons came in a suitcase with the Proton logo.
I know of 3 Proton PC-1s, which are slightly different. The first two I owned look alike, the third one (owned by Dirk Prins) shows the PA port of the VIA 6522.
Advert on the backpage of the KIM Kenner Club Magazine 29, 1983:
Proton PC-1 photo by Dirk Prins
Downloads
Thanks to Dirk Prins and Henk Verbeek (V1 user manual) for the scans.
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Proton PC-1 2 3 brochure |
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PROTON PC-1 manual V2 High quality scan of the manual |
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Proton PC-1 User’s Manual V1 Original scan by from Henk Verbeek, different from V2 above Converted to black and white and fixed as much as possible) |
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PROTON PC-1 monitor source |
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Proton PC-2, 3 documentation |
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Proton PC-2 Software ASM65 2-pass assembler |
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Proton PC-2 Basic (versie 1) 2-pass assembler |
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ProtonPC-2 Basic( versie2) 2-pass assembler |
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Programming Sheet PC-1 |
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Proton PC-1 source as typed in from the manual and/or disassembled by Dirk Prins and the ROM dump This is not finished, Dirk Prins is working on completing the source. The source delivers already a binary equal to the ROM dumped by Dirk Prins |
Photos by Henk Verbeek of his Proton PC-1
