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Newsgroups: comp.sys.mac.system
Subject: Re: Why does the system take up 10megs for a IIsi?
Message-ID: <1991Jun5.090505.14019@ulrik.uio.no>
From: espen@math.uio.no (Espen J. Vestre)
Date: 5 Jun 91 09:05:05 GMT
Sender: news@ulrik.uio.no (Mr News)
References: <1991Jun4.074959.4685@crash.cts.com> <11648@ncar.ucar.edu>
Organization: Department of Mathematics, Univ. of Oslo
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In article <11648@ncar.ucar.edu> hpoppe@ncar.ucar.edu (Herb Poppe) writes:
> With 24-bit addressing you only get 8Megs of memory. The system "hides" 
> the rest of the memory within itself. To access physical memory beyond 
> 8Megs (on a machine with 32-bit clean ROMs), go to the "Memory" Control 
> Panel and enable 32-bit addressing.

This can't be quite right.  It is perfectly possible for me to run my IIX 
(with 10MB VM) with a total of 7,8MB of applications, leaving 2,2MB for 
the system software.  This means that the system software not only "hides" 
the memory exceeding 8MB, but is in fact able to use it.
So on the IIsi, the system gets 17MB - 8MB = 9MB.  And then for a 
question:  Is it able to use all of it (so you can at least play around 
with tons of TT fonts and other system-memory consuming stuff)??

-----------------------------------------
Espen J. Vestre                 
Department of Mathematics
University of Oslo
P.o. Box 1053 Blindern
N-0316 OSLO 3
NORWAY                            espen@math.uio.no
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