[Info-vax] Whither VMS?

[Bob Eager]

On Sat, 26 Sep 2009 10:41:06 +0000, Bob Eager wrote:

>> Yes, Bob, EMAS started off on the ICL System 4/75.  The Wikipedia entry
>> for EMAS at:
>> 
>> http://en.wikipedia.org/wiki/Edinburgh_Multiple_Access_System
>> 
>> is pretty accurate as far as my memory goes.  I did my B.Sc (Computer
>> Science) at Edinburgh in the mid-1970s and remember EMAS with great
>> fondness.
> 
> The 2900 version was a great improvement due to the greater amount of
> virtual memory available to map files. I have report CSR-18-77 right
> here: "An Experiment in Doing it Again, But Very Well This Time"...!
> 
> I had to port quite a few programs from EMAS to VMS, and wrote libraries
> to map files in the same way using the VMS systems services.

Just to be a bit more on-topic:

EMAS had dual CPU support from the early 1980s. We installed a dual CPU 
in 1983, and I had to write the model-specific code by reverse 
enginerring the microcode (I had a source listing).

The major guy who produced the SMP code was someone by the name of Bill 
Laing. He later went to Digital, and you can find his name in the SMP 
source code for VMS...!



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