unix for the Interdata model 70 ???

From: Heinz Wolter <h.wolter_at_sympatico.ca>
Date: Mon Apr 16 16:56:19 2001

I recently picked up a nice Interdata model 70.
Cool architecture, 16/32 bit instructions, fixed and
floating point - the partial manual I have claimed IBM-360-like
instructions. It's a microcoded machine with a "supervisor
call" instruction but no memory managment or address
extension beyond the 16 bit address bus.

Does anyone have more info on these beasts - or what happened
to them after Perkin Elmer bought Interdata?

I've run a google search and came across many mentions of very
early versions on unix being ported to the Interdata. Does anyone
have an OS or heard of an early version of Unix for it?
The machine seems to provide native hardware support for TTY
paper and mag tape but I've seem no mention of disks....Unix without
disks running on on 16Kb of 1 microsecond core could be very slow...

Regards,
Heinz Wolter
Received on Mon Apr 16 2001 - 16:56:19 BST