>From: "David V. Corbin" <dvcorbin_at_optonline.net>
>
>http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=1247&item=5103745074&
>rd=1
>
>Pobably the most complete system I have seen being made available....
>
>
Hi
It is also an early system. Most newer systems don't come with the
Digital Systems drives. This is one of the rarer DMA type setups
with the controller made from TTL. I would love to get a copy of the
Digital Systems manual. I'll be watching this one to see who
wins it. Maybe they won't mind making a copy of the manual for
me.
When I got my IMSAI, it had this drive system. I had to figure out
the floppy controller by figuring out the PROMs used in the state
machine. I wrote my own BIOS for it as well. It was a lot of work.
It wasn't until a few years later that I found someone else with
one of these controllers and actually got an original BIOS. It
was almost identical with mine ( no big surprise ).
I still use my IMSAI because it is handy to do my 8080 assembly
on ( and more fun ).
Dwight
Received on Mon Jun 21 2004 - 12:17:26 BST