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From: bard@jessica.stanford.edu (David Hopper)
Subject: Re: parity is for farmers?
Message-ID: <1991Jun3.191541.24072@leland.Stanford.EDU>
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References: <1991May21.232331.24888@cs.umn.edu> <1991Jun03.040242.15406@ariel.unm.edu> <1991Jun3.134917.12326@umbc3.umbc.edu> <1991Jun3.144909.24609@decvax.dec.com>
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Date: Mon, 3 Jun 91 19:15:41 GMT
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In article <1991Jun3.144909.24609@decvax.dec.com> kenton@abyss.zk3.dec.com (Jeff Kenton OSG/UEG) writes:
>|> In article <1991Jun03.040242.15406@ariel.unm.edu>
>ratshana@triton.unm.edu (R.L.) writes:
>|> 
>|> >2) I don't know about the NeXT, but the Amiga used to also store checksums
>|> >   at the end of the file stored in RAM. Everytime in went to run
>the program
>|> >   it would calculate the checksum and compare it to the stored one,
>if they
>|> >   didn't match, it'd give you a dialog box saying so.
>
>The Amiga needed to do this because it supported multi-tasking without an MMU.
>Programs used to regularly trash each other's memory space.  It was one of the
>most painful development environments I ever worked with.  Neat graphics
>hardware, but pretty weak operating system.

That's a matter of opinion.  For a preemptive microkernal OS, it doesn't
get any better.

Followups to comp.sys.amiga.advocacy.

>==	jeff kenton		Consulting at kenton@decvax.dec.com        ==

Dave Hopper      |MUYOM!/// Anthro Creep | NeXT Campus Consultant at Stanford
                 | __  ///    .   .      | Smackintosh/UNIX Consultant - AIR
bard@jessica.    | \\\///    Ia! Ia!     | Independent Amiga Developer
   Stanford.EDU  |  \XX/ Shub-Niggurath! | & (Mosh) Pit Fiend from Acheron