What was the most popular operating system on the PDP-11 computers?
And is it known what percentage of PDP-11 computers used this operating system?
Retrocomputing Stack Exchange is a question and answer site for vintage-computer hobbyists interested in restoring, preserving, and using the classic computer and gaming systems of yesteryear. It only takes a minute to sign up.
Sign up to join this communityWhat was the most popular operating system on the PDP-11 computers?
And is it known what percentage of PDP-11 computers used this operating system?
I'm only guessing, but I would guess in the late '70s and early '80s either
RSTS/E for traditional timesharing use
RSX-11M for real-time application use; maybe this transitioned to RSX-11M-Plus as larger memories became common
I have no data for this, just an impression of what was going on in DEC while I was there. I'd be interested in numbers if anyone can come up with them. The answer should in principle be knowable for DEC systems, since software came with a price tag.