On Thu, 27 May 2004, Dave Dunfield wrote:
> #1 ISAAC INTERFACE BOARD D91A-8318 REVC
> Copyright 1981 by CYBORG CORP
> Large format card (large enough to slope down at front)
> Has an 6522 on it.
> Also has an external battery box that plugs into a small barrel
> jack at the front of the card.
> Has 6 pin terminal strip, plus two 34 pin ribbon cable headers.
> Small 4-position DIP switch at front, 8-position DIP switch farther
> back (under terminal strip).
No idea, but it sounds like whatever hooked up to it was pretty cool :)
> #2 No markings at all.
> Smaller card, slightly longer than Apple disk controller.
> Has a 20 pin header sticking out the back of the card.
> Has an RCA 1802 CPU on it!
> 2 2k EPROMS
> 1 6 position DIP switch.
Damn, two really cool cards in one //e! Again, no idea. Have you gone
into the monitor and dumped the ROM address space for each card to see if
there are any clues there?
--
Sellam Ismail Vintage Computer Festival
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Received on Fri May 28 2004 - 00:58:59 BST