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From: ee161aba@sdcc18.ucsd.EDU (David L. Smith)
Newsgroups: comp.sys.apple
Subject: Re: The Woz and the Apple IIGS, //x
Message-ID: <566@sdcc18.ucsd.EDU>
Date: Tue, 11-Nov-86 18:09:01 EST
Article-I.D.: sdcc18.566
Posted: Tue Nov 11 18:09:01 1986
Date-Received: Wed, 12-Nov-86 21:15:15 EST
References: <7993B5U@PSUVMB> <557@sdcc18.ucsd.EDU> <8083B5U@PSUVM>
Reply-To: ee161aba@sdcc18.UUCP (David L. Smith)
Organization: U.C. San Diego, Academic Computer Center
Lines: 20

>>The IWM is also in the Mac, as memory serves, so it's not a design
>>for the IIc/e/GS.  And Woz wasn't on the Mac team.
>   First, the IWM was introduced in the //c, and according to my roomate, an
>Apple II owner and follower for six years, that was its original use. It was
>supposed to be used in the //x, and it is now in the IIGS.
>   As far as I can find, it is NOT in the Mac, and, if you think about it, why

Yes and no.  The IWM was created for the IIe/IIc but it's also in the Mac.
It is an intergrated version of Woz's original disk controller for the II,
doing GCR encoding on a disk drive.  It allows for data encoding with almost
no hardware and we all know that if Apple can avoid an extra chip (no matter
how overworked the poor processor is) they will.  That's why it's in the Mac.
(And you were wondering why your drives are so slow:-))

Dave

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David L. Smith
SCUD
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