>Had this machine dropped on me last night...
>Can anyone tell me anything about it?
>So far, google etc. have turned up little.
It is a Unisys A7 series
There was just a discussion about this on the list. It should
have an A-Series CPU board in it with the PC-ish stuff handling
I/O. The system ran OS-2.
threads:
History Check -- First CMOS mainframe
a few micro-A references
Thanks, That explains the large board filled with unknown "unisys" chips
thats plugged into another socket near the 486 CPU board.
I checked the list references and didn't find a whole lot of useful
material. I did get the patent info which contains some general
details.
Briefly discussed here a couple of weeks ago.
The x86 side boots OS/2 as an I/O server for the multichip Burroughs-family
CPU. There's a patent online describing the setup. Kind of interesting as
one of the lone 48-bit word systems based on a PC, not to mention the
Burroughs architectural model.
I assume the OS/2 runs only on the 486 side?
What runs on the unisys CPU side?
Do you know if the 486 side is "PC-ish" enough to boot DOS?
Grumble.
You deserve better. I have a desktop Micro-A here*
that I can look into for more information. Mine is very
much a PC booting OS/2 and doesn't even segue into
MCP unless you issue the magic commands.
I believe 99% that mine would boot a MSDOS floppy
if given it, but haven't tried.
John, could you try booting a DOS disk? (I used DOS-5)
It would he helpful to know if the machine should boot DOS
(ie: if this one has a problem).
What is 'MCP'?
Do you know about the 'setup' program that it keeps asking
me to run? Does it boot from floppy?
Is this thing interesting enough to be work spending some
time on?
Dave
--
dave06a (at) Dave Dunfield
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