11 Feb
2016
11 Feb
'16
12:52 p.m.
On Feb 11, 2016, at 12:39 PM, William Donzelli
<wdonzelli at gmail.com> wrote:
In the mid-to-late 70?s, I was an undergrad at CMU. I had accounts on the
CS department?s systems. When I started, it was 2 KA10s. Eventually a
KL10 was added (all running a *heavily* patched version of TOPS10).
During the day it was nearly impossible to get stuff done with ~200 faculty
and grad students on-line (on each system).
I also spent a fair amount of time on C.MMP but I only wrote code for it and
never actually did any ?production? work on it (but it was *cool* to see?cross
point switch was the ultimate in blinking lights!).
TTFN - Guy
Indeed. RSTS/E did better, with less hardware --
64 users on an 11/70 was no problem, and earlier on you could run 16 users on an 11/20
(though not all that comfortably).
It all depends on what the users are doing, of course. When I went to
school back in the late 1980s, the main computer was (for a while) a
VAX-11/780. Things started to get dodgy with 30 engineering students
online compiling and running crap code, and almost useless when 35
were on.
There was also an ancient PDP-11/70 that ran some variant of Unix, and
that general became useless after about 10 students were online.