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From: dillon@CORY.BERKELEY.EDU (Matt Dillon)
Newsgroups: comp.sys.amiga
Subject: Re: Multitasking: Amiga vs. Unix
Message-ID: <8708230428.AA28471@cory.Berkeley.EDU>
Date: Sun, 23-Aug-87 00:28:51 EDT
Article-I.D.: cory.8708230428.AA28471
Posted: Sun Aug 23 00:28:51 1987
Date-Received: Sun, 23-Aug-87 16:09:25 EDT
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>#3. Two tasks competing for time.

#4.  One big difference is the lack of an MMU and process protection on the
    Amiga.  Sortof the way Xerox-Parc machines work.  The disadvantages are
    obvious.  The advantages are:

	(a) Context switch (read: system call) time is nil.
	(b) All messaging, signalling, and anything having to do with
		interprocess communication is incredibly fast and simple,
		making a multitasking kernel extremely workable.
	(c) Process switch overhead is nil


					-Matt