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From: dmturne@PacBell.COM (Dave Turner)
Newsgroups: comp.os.misc
Subject: Re: UNIX vs. the world (again)
Message-ID: <6181@ptsfa.PacBell.COM>
Date: 17 Jun 91 18:46:47 GMT
References: <1991Jun15.143436.5574@cunixf.cc.columbia.edu> <25791@lanl.gov> <1991Jun17.050847.23968@llustig.palo-alto.ca.us> <1991Jun17.112423.8970@porthos.cc.bellcore.com>
Reply-To: dmturne@PacBell.COM (Dave Turner)
Organization: Pacific * Bell, San Ramon, CA
Lines: 25

In article <1991Jun17.112423.8970@porthos.cc.bellcore.com> /devel/develop1.0/user@hercules.UUCP (Lorne Schachter) writes:
>>I don't believe any form of UNIX ran on the pdp8 line of computers.
>
>I think Ken and Dennis got started on an 8 (or maybe a 7), the released
>system ran on an 11.

Here are the words of Ritchie and Thompson:

	"  There have been four versions of the UNIX time-sharing system.
	The earliest (circa 1969-70) ran on the Digital Equipment Corpora-
	tion PDP-7 and -9 computers. The second version ran on the unpro-
	tected PDP-11/20 computer. The third incorporated multiprogram-
	ming  and ran on the PDP-11/34, /40, /45, /60, and /70 computers;
	it is the one described in the previously published version of this
	paper, and is the most widely used today. This paper describes
	only the fourth, current system that runs on the PDP-11/70 and the
	Interdata 8/32 computers."

Quoted from "The UNIX Time-Sharing System" by D.M. Ritchie and K. Thompson
in BSTJ July/August 1978 Vol. 57, No. 6, Part 2.  The earlier paper
appeared in Communications of the ACM, 17, No. 7 (July 1974), pp. 365-375.


-- 
Dave Turner	415/823-2001	{att,bellcore,sun,ames,decwrl}!pacbell!dmturne