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From: ching@brahms.amd.com (Mike Ching)
Newsgroups: comp.sys.mac.hardware
Subject: Re: The LC vs. IIsi (CPUs)
Message-ID: <1991Jun13.004142.14319@amd.com>
Date: 13 Jun 91 00:41:42 GMT
References: <1991Jun5.175401.14345@sequent.com> <44397@netnews.upenn.edu> <1991Jun12.094617.517@otago.ac.nz>
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Organization: Advanced Micro Devices; Sunnyvale, CA
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In article <1991Jun12.094617.517@otago.ac.nz> michael@otago.ac.nz writes:
>In article <44397@netnews.upenn.edu>, hodas@saul.cis.upenn.edu (Josh Hodas) writes:
>
>> Perhaps, god forbid, they had the consumer in mind as well.
>> 
>> Perhaps, with a target in the lowend market, they wanted to allow the
>> consumer to upgrade the machine without laying out for four simms.
>
>Actually it wouldn't have been difficult to deal with that as well: just have
>the bit that tells the CPU whether its talking to a 16-bit or a 32-bit port for
>the DRAM configurable, either by way of a jumper on the board or better yet in
>software when the ROM starts up. So you could have two or four SIMMs
>according to your budget, although folks might complain about the slowdown
>when they swapped from 4 1M SIMMs to 2 4M SIMMs - imagine all the messages
>saying "You mean I put more memory in this thing and now it runs *slower*?"...
>


Why not make the base machine 16 bits wide and have the 2 expansion SIMMs
change it to 32 bits? Isn't Apple lucky to have all of us designing their
machine for them? :-)

Mike Ching