Releasing OS/2

[Tore S Bekkedal]

On Fri, 2005-10-14 at 17:43 -0400, Allison wrote:
> >Circuit Cellar had a Z8000 and on card for the PC once. Does anybody 
> >remember
> >just what it ran?  Other than 386's was there any other add on cards for 
> >the PC?
> Cards to add other CPUs to PC are many.  At any time there were:
> 
>  8751 (multiples for Mandelbrot calulations)
>  Z80
>  Other X86
>  Z8000
>  68000
>  16032
>  T-11 (PDP-11)
Norsk Data made a NORD-100 on a 3/4 or full-length ISA board. It cost
millions and millions of kroner (7 kr ~= 1 $) in RnD in the 1980s. I
think it was one of their biggest flops. I think the amount of units
sold barely made three digits. It might have been the first ND-100 in
VLSI. It would trap in and out of ND-100 mode using a special keycode on
the keyboard in the PC's they sold them with. When in ND mode it would
use the x86 as an I/O processor, and communicate with it using a memory
window. 

IBM also had S/370 MCA boards implementing a microcoded S/370 on a
MC68000.
> All come to mind.  Many had no OS as they relied on the host processor for 
> support.
The '100 had a to me unknown amount of RAM, but probably no more than
1MB and no less than 128KB. It ran SINTRAN on the onboard RAM. I know of
the existance of one and will snap a shot or two of it next time I'm
there.

-toresbe