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Path: utzoo!decvax!harpo!whuxlm!akgua!sdcsvax!noscvax!kemp
From: kemp@noscvax.UUCP (Stephen P. Kemp)
Newsgroups: net.micro
Subject: Summary: UNIX for 512k Macintosh
Message-ID: <705@noscvax.UUCP>
Date: Wed, 5-Dec-84 14:52:26 EST
Article-I.D.: noscvax.705
Posted: Wed Dec  5 14:52:26 1984
Date-Received: Sat, 8-Dec-84 01:28:32 EST
Distribution: na
Organization: Naval Ocean Systems Center
Lines: 51

This is a summary of my query:
Does anybody know of a UNIX implementation for the 512k Macintosh?

Steve Kemp	 {ihnp4, decvax, akgua, dcdwest, ucbvax}!sdcsvax!noscvax!kemp
Computer Sciences Corp.         kemp@nosc.ARPA
Naval Ocean Systems Center
San Diego, CA
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 >From sdcsvax!sdcrdcf!hplabs!oliveb!ios!daves Wed Nov 28 21:17:58 1984
 >
 >I don't know of any Unix for 512K Mac, but would be very interested
 >in anything you find out!
 >
 >A friend of mine, who supported the Apple Mac group, told me
 >that the interrupt structure on the Mac is such that it
 >can't support true multi-tasking.  If so, it would be
 >very difficult to support unix.  However, my friend is not
 >a technical person, and left Apple a year ago, so maybe
 >it actually is possible.
 >
 >Dave Schnepper
 >ios!daves
  
                 *********************************
 >From sdcsvax!ihnp4!rlgvax!guy Thu Nov 29 00:25:55 1984
 >
 >Not bloody likely, given 1) the 512K Mac hasn't been out for long, 2) the
 >Mac doesn't have memory management (which makes straight UNIX difficult;
 >it'd either have to run like Mini-Unix and swap only one process into memory
 >at a time, or work with a compiler that generated code that referenced all
 >global variables either relative to the PC or to some other register), nor
 >does it have a hard disk as a standard feature, and 3) it'd be a real waste
 >of a Mac, in my opinion, unless somebody made it possible to use all the
 >user interface goodies in the Toolbox in programs (if I had a Mac I'd refuse
 >to use programs with a conventional OS type user interface).
 >
 >	Guy Harris
 >	{seismo,ihnp4,allegra}!rlgvax!guy
  
                 *********************************
 >From sdcsvax!akgua!ihuxq!agk Thu Nov 29 20:31:41 1984
 >
 >> Does anybody know of a UNIX implementation for the 512k Macintosh?
 >No.  But the problem is not solved by 512Kby of main memory;  the real
 >problem is the lack of decent sized disks.  The kernel with a suite of
 >commands can consume 3-4 megabytes without trying.  And the user usually
 >wants to keep a few things out there too.  I wouldn't look at a disk
 >smaller than 10 Mby, even for personal uses.
 >
 >	-andy kegel