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guenthert
36 days ago
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An old photo of a large BBS (2022)
iirc fancier (expensive) multiport ISA card had their own CPU (probably a Z80 or 8051) and a little RAM as buffer. Here an EISA card with an (unusual) Z280:
https://oldcomputer.info/terminal/ap_cards/si-eisa_1.jpg
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