Programmable 8255 PIA. Space for analog-to-digital converter, relays, clock chip, etc. Expansion connector for RAM pack.
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- SYNC v2 n1 p. 27
3 Port I/O board
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Programmable 8255 PIA. Space for analog-to-digital converter, relays, clock chip, etc. Expansion connector for RAM pack.
No people associated with this content.