(wildly off topic but) On Tue, Nov 1, 2022 at 4:49 PM Ethan Dicks via cctalk <cctalk@classiccmp.org> wrote: > > I don't think the 11/750 could have handled that many users on DZ-11s.
With DZ-11s no. But it is impressive what could be done with the "good" hardware. In the mid 80s I was an occasional user on a 11/750 that at its peak had 80 (eighty!) terminals connected across a university campus. Mostly terminals that could be switched between different host lines (sometimes with a mechanical switch box) so the 750 was never 100% utilized, but even with ~40 people logged in, responsiveness was bearable. The interfaces as I recall were DHU-11s and DMZ-32s. The DMZ-32s were weird beasts; the Unibus module connected to a distribution panel via a 4-wire T1 line and could be kilometers away. The distribution panel (which needed its own power supply) had 24 lines. I suspect the thing was aggressively optimized for low CPU overhead. Magnus
