From: dave@horsfall.org (Dave Horsfall)
Subject: [TUHS] shell PS1/PS2 which survive cut-paste
Date: Fri, 8 Dec 2017 11:31:37 +1100 (EST) [thread overview]
Message-ID: <alpine.BSF.2.21.1712081112550.35694@aneurin.horsfall.org> (raw)
In-Reply-To: <CAC20D2PjB6tM2xHPXjiLiU3Sm+r7uqs4SwSngLN0phnPB055cA@mail.gmail.com>
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On Thu, 7 Dec 2017, Clem Cole wrote:
> > Never got to use the V7 shell; we were stuck with 11/40s[*]
>
> Dave I don't understand this statement. We ran Seventh Edition on 11/40
> class processors more than anything else. The issue was lack of separate
> I/D space and the kernel got large so you ran out of physical memory. The
> later was solved with things like the Able ENABLE, which I admit I put one
> couple of 11/34 and our 11/60 (which are 11/40 class). But V7 ran fine on
> it.
I tried, but no way it would work; the only non-DEC gear we ended up with
was extra memory (nothing special, but of course not covered by Field
Circus) and an Ampex[*] RP-03 clone (I think). For all intents and
porpoises it was a maxed-out 11/40 (then the /60 later on).
As I mentioned before, the AUSAM buffer scheme certainly helped, and we
kissed goodbye to deadlocks; we even modified character devices (LP. XY,
LV etc) to use the buffer pool instead of the character queues, and they
went damned fast.
I should mention that the /40s were originally specced to run RSX-11D
(yuck), and when the ACM article came out the rest was history...
[*]
My spell checker suggested "Tampax" for "Ampex"...
--
Dave Horsfall DTM (VK2KFU) "Those who don't understand security will suffer."
next prev parent reply other threads:[~2017-12-08 0:31 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-06 1:22 George Michaelson
2017-12-06 1:28 ` Kurt H Maier
2017-12-06 2:26 ` Lyndon Nerenberg
2017-12-06 1:30 ` Steve Nickolas
2017-12-06 3:45 ` Grant Taylor
2017-12-06 5:53 ` arnold
2017-12-06 6:01 ` George Michaelson
2017-12-06 15:14 ` Ian Zimmerman
2017-12-06 6:19 ` Dave Horsfall
2017-12-06 8:00 ` arnold
2017-12-06 23:57 ` Dave Horsfall
2017-12-07 8:33 ` arnold
2017-12-07 21:46 ` Dave Horsfall
2017-12-08 6:12 ` arnold
2017-12-07 21:54 ` Clem Cole
2017-12-08 0:31 ` Dave Horsfall [this message]
2017-12-16 17:42 ` Derek Fawcus
2017-12-17 13:12 ` Don Hopkins
[not found] <mailman.402.1512547277.9955.tuhs@minnie.tuhs.org>
2017-12-06 11:02 ` Paul Ruizendaal
2017-12-06 12:00 ` arnold
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