[usr1106]

Hmm, an SDS 940. Never heard :(

I have used a CDC 6600 and various 370s. PDP only from reading, I started with VAXen.

[retrocryptid]

Yeah. SDS (later XDS) was bought up by Xerox just before Xerox launched PARC. In the "Fumbling the Future" book, there's several pages describing how PARC has to constantly push back against corporate who were trying to fold it (PARC) into SDS.

I wrote my first Lisp program on a 940 back in the 70s. IIRC, the Sigma series were the machines XDS built after the 940. I don't know they were super popular, but maybe you might have heard of them.

[AlbertCory]

There is actually a book which you can get for free (or could, at one time):

https://www.amazon.com/Computers-Nobody-Wanted-Years-Xerox/d...

we can call it "the book nobody wanted." /s

Strassman tells how he offered the PARC people a very good deal on an SDS machine, and they turned up their noses at it. They wanted a PDP-10, but they weren't allowed to buy from DEC, so they built their own lookalike (Maxc).