Resources Wiki zimmers.net – schematics, firmware, manuals, software Ancient Electronics – how to add HDD oldcomputer.info Internals Motherboard Floppy Disk Drive PC-20 III supports only 360K floppy…… Read more “Commodore PC 20-III”
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Schneider Euro PC
Resources Wiki Computer Museum of Humboldt University Berlin Old Machinery Blog retropc.ru (pinouts) Power Supply The power ratings are compatible with a standard PC ATX power supply.…… Read more “Schneider Euro PC”
Atari Portfolio
Resources Wiki Old Computers Atari Portfolio Web Pages (from year 2000, contains discussions from the 90’s) Internals
