In article <200603241458150668.3F10EE58 at 10.0.0.252>,
"Chuck Guzis" <cclist at sydex.com> writes:
I worked on 6000 and Cyber 200 systems and didn't
have much contact with
the 3000 series. It's darned interesting the amount of dissimilarity that
CDC operating systems had from one another. 6000 SCOPE and NOS was nothing
like MASTER or MSOS. 7000 SCOPE bore a cosmetic resemblance to the 6000
version, but was very different internally. Cyber 200/STAR OS was a
completely different animal from anything else. If you moved between
hardware lines, you might as well have been changing manufacturers.
I remember the PLATO IV system being so vastly different from
everything else I had used that it felt like an alien world. I
remember the Tutor language as being so odd that I found it difficult
to write simple programs. I never really did quite grok it.
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