> On Feb 11, 2016, at 3:52 PM, Guy Sotomayor <g...@shiresoft.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).
The most amazing timesharing system I've seen is PLATO. In 1977: 600 active
users, highly interactive, on a pair of Cyber 73 (CDC 6500) dual CPU machines.
Each CPU good for about 1-2 MIPS, so that's pretty good. Even with a
customized workload, that was a tough lift; typically about half the keystrokes
would require "real work". Not like a command line based system where most
keystrokes just get echoed and stuffed into the current line buffer.
paul
