Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!rutgers!cmcl2!phri!roy
From: roy@phri.UUCP (Roy Smith)
Newsgroups: comp.arch
Subject: Re: PDP-10 user I/O (really: third-party operating systems)
Message-ID: <3327@phri.UUCP>
Date: 31 May 88 00:25:19 GMT
References: <46500018@uxe.cso.uiuc.edu> <5612@aw.sei.cmu.edu>
Reply-To: roy@phri.UUCP (Roy Smith)
Organization: Public Health Research Inst. (NY, NY)
Lines: 23

firth@bd.sei.cmu.edu.UUCP (PUT YOUR NAME HERE) writes:
> So throw away the operating system. [...] When [the OS] subtracts value -
> when the things it stops you doing are more important that the things it
> provides for you - then it is time to throw it away.

	I was going to say "you mean like TENEX instead of OS-TEN, or Unix
instead of RSTS (or VMS, or Domain, or ...)" but I realized that I can't for
the life of me remember the name of the native DEC OS that ran on the pdp-10
(I know I wasn't OS-TEN, but I needed a space-filler).

	More seriously, other than TENEX and Unix, can anybody think of any
"third-party" OSs which replaced the vendor-suplied OS on a given machine to
any significant extent?  Surely there must be other examples.  Does MACH
count as an OS, or is it really just a Unix derivitive?  If it does count, I
guess that would be one third-party OS displacing another!

	Anybody gotten fed up with SunOS and tried writing their own
operating system for a Sun?
-- 
Roy Smith, System Administrator
Public Health Research Institute
455 First Avenue, New York, NY 10016
{allegra,philabs,cmcl2,rutgers}!phri!roy -or- phri!roy@uunet.uu.net