Path: utzoo!utdoe!generic!pnet91!ericmcg
From: ericmcg@pnet91.cts.com (Eric Mcgillicuddy)
Newsgroups: comp.sys.apple2
Subject: Re: Apple IIGS's Memory Limit (17Megs)
Message-ID: <864@generic.UUCP>
Date: 21 Jun 91 23:45:07 GMT
Sender: root@generic.UUCP
Organization: People-Net [pnet91], Etobicoke, ON
Lines: 10

The GS can address up to 16Megs of memory, however half of that is ROM and/or
I/O spaces. The 8Megs can all be RAM, however there are only 2 bank selector
lines for DMA, so only 4 banks in the memory expansion board can be accessed
using DMA. How big these banks are depends on the address lines available,
currently this is 1Meg per bank.

The practical limit to GS memory is 5.125Megs of RAM.

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