Re: Ask yourself these before you choosing a 32bit OS...

Article View: comp.sys.powerpc

Article #2365

#2365

From: Dave Haynie
Date: Tue, 26 Sep 1995 21:51

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In <43kai7INNjvp@anvil.ugrad.cs.ubc.ca>, c2a192@ugrad.cs.ubc.ca (Kazimir Kylheku) writes:
>In article <nevin-1709951616450001@mac-nevin.cs.arizona.edu>,
>Nevin ":-]" Liber <nevin@CS.Arizona.EDU> wrote:

>>Er, the original MacOS was never, never designed to run on multiple CPUs. 

>Well that's all true and fine, of course. However, having been implemented
>on affordable hardware in the early to mid 70's didn't stop UNIX from
>entering the age of SMP.  How do you explain that?

	1) UNIX doesn't care about binary compatibility between
	   revisions.
	2) UNIX was a real OS, even back in the 70s. If you start with
	   a better OS abstraction, it's easier to change around the
	   guts without breaking things. 
	3) I couldn't afford a DEC system in the mid-70s.

>>Given you were designing the Mac in the early 80s with the above
>>constraints, how would you have done it?  

The way it was done on the Amiga a year later. 

Dave Haynie          | ex-Commodore Engineering |   for DiskSalv 3 &
Sr. Systems Engineer |  Hardwired Media Company | "The Deathbed Vigil"
Scala Inc., US R&D   |    Ki No Kawa Aikido     |     info@iam.com

	     "I don't owe you anything!" -Foo Fighters

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<3vh2hc$9dd@falcon.ccs.uwo.ca> <43auuk$41@starfruit.csd.sgi.com> <43d484INNlge@keats.ugrad.cs.ubc.ca> <nevin-1709951616450001@mac-nevin.cs.arizona.edu> <43kai7INNjvp@anvil.ugrad.cs.ubc.ca>

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Newsgroups: comp.sys.powerpc,comp.os.linux.advocacy,comp.sys.mac.advocacy,comp.os.os2.advocacy,comp.sys.amiga.advocacy,comp.sys.intel,comp.os.ms-windows.advocacy
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From: dave.haynie@scala.com (Dave Haynie)
Subject: Re: Ask yourself these before you choosing a 32bit OS...
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Message-ID: <1995Sep26.215157.14475@scala.scala.com>
Date: Tue, 26 Sep 1995 21:51:57 GMT
Reply-To: dave.haynie@scala.com (Dave Haynie)
References: <3vh2hc$9dd@falcon.ccs.uwo.ca> <43auuk$41@starfruit.csd.sgi.com> <43d484INNlge@keats.ugrad.cs.ubc.ca> <nevin-1709951616450001@mac-nevin.cs.arizona.edu> <43kai7INNjvp@anvil.ugrad.cs.ubc.ca>
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