History Check -- First CMOS mainframe

Chuck Guzis cclist at sydex.com
Sun Mar 5 12:57:37 CST 2006


On 3/4/2006 at 6:10 PM John Allain wrote:

>Lucky Me, somebody turned up some history on my oddity
>There is in fact a desktop emulator of a Unisys mainframe
>that boots the coprocessor from within OS/2.  I have one
>here.  Happened across it by pure luck.  I'm not an expert
>in the MCP O/S so have been in lurkmode on this for a
>longnow while.

>From what I've been able to tell, the thing executes a superset of the old
1107 instruction set.  Given the date of introduction (1989), it's got to
be one of the last holdouts for non-power-of-2 word length (36 bits).  An
odd bird indeed--OS/2 sounds as if it was used to handle I/O for the Micro
A.

Cheers,
Chuck





More information about the cctech mailing list