Ancient 8086/80286 unixes?

[Chris M]

--- Chuck Guzis <cclist at sydex.com> wrote:

> On 5 Sep 2007 at 10:46, Chris M wrote:
> 
> >  Do you mean like development systems? I'm not
> aware
> > of any pre-AT '286's - not saying there weren't
> any.
> > They seem to have less exposure then pre-5150
> Intel
> > stuph.
> 
> Definitely were.  I worked on the port for the
> Durango Poppy, for 
> example, using early steppings of the 80286. 
> Interesting thing is 
> that pre-production silicon was available on the 286
> and the 186 at 
> about the same time.

 Yes that does seem to be true. Was the 80186 actually
intended for embedded applications? It readily found
it's way into that market (probably weren't too many
embedded controllers when it was introduced though).

> I wonder if there were any 80286 coprocessor plug-in
> boards for the 
> XT before the AT?
 
 I'm guessing so, w/o specific knowledge. One of the
first though was the Orchid Turbo-186, but was
revamped  with a '286 before very long. There were
patents assigned to the original board:
www.freepatentsonline.com/4799150.html
funny, Google's cached deposits are as slow as the
original server's.
 Here's a neato question: You mentioned coprocessor
boards, and in fact some kinda sorta functioned that
way (in some sense - stuff got offloaded to the mpu on
the board I guess). But what were some early ancillary
processor boards for the pc/at/?. That is, where you
plugged a whole 'nother puter into your main puter,
and got to run separate apps off of that? Hmmmmm


       
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