11 Feb
2016
11 Feb
'16
11:54 a.m.
On Feb 11, 2016, at 2:48 PM, Rich Alderson <RichA
at LivingComputerMuseum.org> wrote:
From: Jerome H. Fine
Sent: Thursday, February 11, 2016 8:56 AM
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).
paul
> Jon Elson wrote:
> We paid somewhere between 200 and 250K for
our first 11/780. We had
> an RM05 and a TU77, and 256 KB of memory. It was a pretty basic
> system, but ran rings around the campus 360/65 system. We also had a
> pair of 370/145's that were an expensive joke. (The 360/65 ran rings
> around BOTH of them. They ran time sharing on them, limited to 4
> users/machine. We often had 8+ users plus batch jobs running on our
> 780.)
Any idea about the date of when VMS could do that
with a VAX?
From the very beginning? That is, 25 October 1977?
VMS was built from the get-go as a timesharing operating system with a
virtual memory architecture. It was not the best of such, nor was the
hardware done particularly well (a VM system with no Page-Modified bit
in hardware? seriously???), but it was certainly capable of handling
that many users (and more, depending on job mix).