On Wed, 23 Jun 1999, Arfon Gryffydd wrote:
> >1. "Disk n" disk controllers, n=1, 1A, 1B, 2, 3, or 4.
> >2. "CPU nn" CPU cards, nn=85/88, Z, etc.
> >3. "Interfacer n" I/O boards, n=1 to 4
> >4. "System Support" boards, with real time clock, console port, etc.
> >5. "RAM nn" boards, nn usually greater than 16.
>
> >>On a more serious note, I looked inside and there was:
> >> A Z-80 cpu card.
> >> 2 cards with 512K on them and were labled Disk something.
> >
> >Well, then, these are your disk controller(s). The "something" that
> >comes after Disk is very important in identifying them!
> >
> >The "512K" sounds like a Compupro board etch identifier, but I just
> >looked over my Compupro Disk 1's, 1A's, Disk 2's, and Disk 3's, and
> >none of them say 512K. Maybe it's a Disk 1B? Disk 4?
>
> Nope... I suspected RAM disc cards because 512K is the AMOUNT of RAM I
> counted (a board covered w/ 4116s). And there were no connectors to the
> boards other than the card edge.
> There are two of these mystery boards.
SemiDisk, perhaps?
- don
>
> >> A wire wrapped (home-brew looking) card that looks like the 8" drive
> >>interface.
> >
> >What makes you think that it's the 8" drive interface? Look for the 50-pin
> >cable coming from the drive box and figure out where it's going.
>
> Uh,I thought it was the drive interface because it had a 50pin cable
> comming off it that matched the 50pin connection to the 8" drives box.
>
>
> >> Another card covered with 6116 Ram chips.
> >
> >32 6116's gives you 64Kbytes, a comfortable amount for running CP/M-80.
> >Your description matches that of the Compupro RAM17, though lots of
> >of other manufacturers made similar boards that might be in your system.
>
> Yep, that sounds right.
>
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Received on Thu Jun 24 1999 - 00:56:43 BST