Bill Gunshannon <bill.gunshannon@gmail.com> wrote:
On 9/15/26 13:35, Dan Cross wrote:In article <87h5jqpu4f.fsf@debian>,>
Kragen Javier Sitaker <kragen@canonical.org> wrote:bill <bill.gunshannon@gmail.com> writes:On 6/29/2026 6:57 AM, Scott Dorsey wrote:>It did it very, very, very slowly.>
Not necessarily EUNICE's fault. As I said in my response to Arne,
that was a time when software was too far ahead of hardware.
You could run Unix on a PDP-11. You couldn’t do that with VMS.
Apples and oranges, I'm afraid. You could run early versions of
research Unix on PDP-11s, sure, but that's not really comparable
to VMS: VMS compares more closely to 4BSD, which would _not_ run
on a PDP-11.
- Dan C.
More than early research versions. Version 7 was
pretty complete. And then you had Ultrix-11 which
had a pretty good choice of production software
available to it.
I consider pretty much everything up through and including 32/V
an "early version of Research unix." Sure, the system call
interface was ok, but there was no IPC to speak of beyond pipes
and multiplexed files, which never caught on (RIP Greg Chesson),
and the filesystem was pretty anemic, etc.
What could you do on 4BSD that can't be done on 2.11?
Other than run programs too big to fit on a PDP-11.
2.11 is also a bit of an unfair comparison; that was something
of a back-port of 4BSD back to the PDP-11. Certainly, a primary
motivation for moving to 32-bit paged memories was supporting
larger programs (part of the DARPA grant stuff was supporting
large Lisp systems on VAXen).
- Dan C.
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