Any word on OS/2 for PDP-11?

John A. Dundas III dundas at caltech.edu
Tue Feb 5 15:43:19 CST 2008


At 3:52 PM -0500 2/5/08, Patrick Finnegan wrote:
>On Tuesday 05 February 2008, der Mouse wrote:
>>  > ever heard of the Vax 11/750 ? You know, the one with the PDP-8 FEP
>>  > ?
>>
>>  Sure you don't mean the 780?  I didn't think the 750 had a FEP at
>>  all; at least, on the ones I used I didn't see anything identifiably
>>  FEPish, either hardware or software.  (I also *think* the 750 wasn't
>>  around pre-1980, but I'm a lot less sure of that.)
>
>The VAX-11/750 currently in my basement certainly doesn't have a PDP-8
>installed in it.  Pictures:
>http://computer-refuge.org/compcollect/dec/vax/11750/index.html
>
>An 11/780 does have a PDP-11/03 in it as a console subsystem (it's
>really really not a front-end processor, no sane person would let a
>user bang away at the console of an 11/780

I'm with Pat on this.  I managed a lot of /780s; they all had LSI-11s 
as the front end.

Also, never saw a /750 with a PDP-8 front end.  Managed a few of 
these too, though this timeframe is a bit hazy.  According to Gordon 
Bell

<http://research.microsoft.com/Users/gbell/Digital/timeline/32-bit.htm>

the /750 was introduced in late 1980.

John


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