Well, the University of Oregon might disagree with you about the PDP-7. They ran the
DECsys monitor, which ISTR was the first such software product from DEC outside the
36-bit line (the PDP-6 and -7 were introduced in the same year). U of O took delivery of
their -7 in 1966 and it saw active service for at least three decades, with over thirty
doctorates earned based on research performed on the system. Hardly useless....
It's always been a bit of a mystery to me why Thompson and Ritchie decided they
needed to write a new executive - UNICS - rather than use DECsys. True, DECsys isn't
anything to shout about and Unix is clearly more useful - but IMHO Spacewar! could have
been coded in the DECsys 'environment'. I infer that they saw broader utility
and application in a more capable executive - which obviously turned out to be true!
The U of O PDP-7 is the one currently residing at the Living Computer Museum (I used to
maintain it).
And what's wrong with OS/8? Minimal, yes - what do you want, Windows Vista? :-) -
Ian
Sent from my android device.
-----Original Message-----
From: John Cowan <cowan(a)mercury.ccil.org>
To: Gregg Levine <gregg.drwho8(a)gmail.com>
Cc: tuhs(a)minnie.tuhs.org
Sent: Mon, 16 Jun 2014 6:38 PM
Subject: Re: [TUHS] Happy birthday, core dumped
Gregg Levine scripsit:
I know I've seen the Star system rig before. But
the Xerox Alto one is
new to me. Wasn't the PDP-7 the fellow where UNIX really got its start
on before they moved it to a PDP-11?
It was. The 18-bit systems were the red-headed stepchild of the DEC world.
The PDP-1, PDP-4, and PDP-7 systems had no DEC-supplied operating system,
and the PDP-9 only a minimal one, about like OS/8. Not until the terminal
18-bit system, the PDP-15, were PDP-11 class operating systems provided.
Consequently, the Bell Labs PDP-7 was essentially useless.
--
John Cowan
http://www.ccil.org/~cowan cowan(a)ccil.org
Awk!" sed Grep. "A fscking python is perloining my Ruby; let me bash
him with a Cshell! Vi didn't I mount it on a troff?" --Francis Turner
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