7 Sep
2004
7 Sep
'04
1:45 p.m.
From: "Joe R." <rigdonj(a)cfl.rr.com>
---snip---
>
> Intel sold a disk-drive subsystem that consisted of two Shugart 801 8"
floppy
> drives. They could work as single density or
double density depending on
> whether you had the 201 or 202 controller board set. Yes, it was a set
of TWO
>> multibus board to control those two floppy drives.
>>
Here are some pictures of a couple of my 800s
<http://www.classiccmp.org/hp/mds800_3/> and
<http://www.classiccmp.org/hp/mds800_4/>. Here
<http://www.classiccmp.org/hp/mds.htm> is a webpage that I started (but
never finished) that describes some of the 2xx models. Here is a MOL
finished webpage about one of my other MDS-800s,
<http://www.classiccmp.org/hp/mds-800/mds-800.htm>. It includes pictures
and descriptions of most of the various MDS-800 cards.
Here, <http://www.classiccmp.org/hp/multibus/multibus.html> is a webpage
that I swtarted about Multibus cards. It includes both Intel and non_intel
cards. I'm WAY behind with the updates for it.
Joe
Hi
When I worked at Intel, I was responsible for the test of the
1036 Floppy Disk Control Card ( this was for double density
M2FM ). It seemed that I was one of the few people, even then,
that knew what a phase locked loop was and how it needed to
be tested.
The Channel card used the 3000 series bit slice. These were
a reasonable bit slice but didn't compete well with AMD's
2900 stuff. I suspect it was mostly the sequencer that put
people off. It is almost impossible to read the code for these
and takes a grand master to write the code effectively.
I've got to get started on my MDS800. It just seems like other
projects get in the way. Perhaps I should put it in the walkway.
that way I'll be reminded of it each time I step over it.
As for a terminal, other than the possible current loop issue,
you may need the right emulator if you want to run CREDIT
( their screen editor ). I believe this just used VT100 codes
but I could be wrong. The original 800's used Beehive terminals
that were painted Intel blue.
Dwight