Hello -
I am interested in learning more about p-machines. Does anyone have
some references, faqs or web sites that would help?
Thanks.
john
>
> <Re:
> <> > 1979
> <> > First multi-user operating system CROMIX (UNIX derivative)
> <> >
> <> > First multi-user operating system...what? On a micro? Maybe.
> <>
> <> Even then, dubious. When did OS-9 come out?
> <
> <IIRC, I was using a multiuser Alpha Micro (probably an AM 100)
> <in my apartment around June or July of 1978. It was based on the
> <Western Digital microengine, which emulated a DEC 11.
> <
> <Stan
>
> Lessee there are some points of order...
>
> Alpha Micro AM100 was a sorta LSI-11 in that it used the same chip set and
> was similar but not compatable in any way.
>
> The Western Digital PASCAL Microengine was a P-machine and operationally
> as well as programativcally very different from DEC PDP-11. It did however
> use the same chipset.
>
> The chipset is WD13 and it's functionality is determined by microms
> (microprogramming roms). Alpha micro was very close to the PDP-11 but
> far enough away to avoid copyright problems. The WD P-engine was oneof the
> few direct P-code executing systems (a stack machine).
>
> All very interesting machine as they were pushing the microcomputer envelope
> for the time.
>
> Allison
>
>
--
***********************************************************************
* John Ott * Email: jott_at_saturn.ee.nd.edu *
* Dept. Electrical Engineering * *
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* University of Notre Dame * Phone: (219) 631-7752 *
* Notre Dame, IN 46556 USA * *
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Received on Fri Mar 19 1999 - 07:19:28 GMT