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From: sam@wolfen.cc.uow.oz (Sam Tan)
Newsgroups: comp.sys.mac.hardware
Subject: Re: How much memory I can have in Mac classic ?
Message-ID: <6730@wolfen.cc.uow.oz>
Date: 14 Jan 91 07:29:24 GMT
References: <1991Jan14.024726.22891@Veritas.COM>
Organization: Uni of Wollongong, NSW, Australia
Lines: 17

This is the memory layout in a Classic:

There is 1 MB of RAM soldered on the mother board.

Apple sell a memory expansion card that has 1 MB soldered on there, but
with 2 empty SIMM slots. You can put it anything you want in the SIMM slots
but you must do it in pairs. You can only go up to 8 MB on a Classic, although
the ROM is 32-bit clean. This is due to the lack of a true PMMU system.

In closing, you can put it anything you want into the SIMM slots but you will
only see the first 8 MB. You can get INITs that will let you access more than
8 MB, but not more than 8 MB at a time, ie. use MultiFinder and each application
can only see 8 MB.

Enjoy!

sam@wolfen.cc.uow.edu.au