Intellec MDS questions

From: Randy McLaughlin <>
Date: Sun Jan 30 13:07:09 2005

From: "William Layer" <>
> Hey all,
> Thanks for all the background and help on the Altair project. I'll be
> taking some pics of the pile for a 'before and after' set. Hopefully there
> will be an after worth mentioning ;-)
> Now on to Intel / Intellec MDS systems. I've got one that is alternately
> described as an MDS225 or and MDS800. IIRC, the dual-disk unit is marked
> MDS800, (blue in color) and the main chassis is marked MDS225 (white in
> color, has a monitor, kb, and a series of pushbuttons with LED
> indicators).
> Information on these units is pretty sparse on the web; multiple google
> searches have yielded little more than years of manufacture, and some
> price info.
> One question that should amuse the more veteran members of classiccmp is
> this: What exactly is meant by "Microcomputer Development System"? It's
> like that old joke about "Repairing Robots".. Are they referring to the
> process of repairing a robot, or to robots that perform repairs?
> Is the MDS a system for developing microcomputers, or is it a
> microcomputer that is used for other forms of hardware / software
> development, or a little of both? I'm getting the feeling that the latter
> might be the case.
> Secondly, what kind of operating system, applications, etc can one of the
> MDS units run? I'm told that it is an ISIS based system, but I really
> don't know much about ISIS. I assume it's a disk operating system, but
> beyond that I'm clueless. I'd like to think that there is some
> general-purpose OS I could run on it, play some wumpus, trek or life,
> amortize my mortgage, or maybe fire up a terminal emulator and get into
> the BBS scene.
> I'm clearly no expert in this old stuff, but I'm at least wise enough to
> realize what I *don't* know. Can someone fill in a few of the gaps?
> My MDS has an 8080A CPU card in it, some kind of memory card, and a disk
> controller. Also, a card that connects to a large ICE pod "Intel ICE-51",
> if that helps.
> TIA, Bill

I have some info on my site including software downloads. Many of the
manuals can be found in Howards manuals (mirrored on my site).

Received on Sun Jan 30 2005 - 13:07:09 GMT

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