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From: kamath@reed.UUCP (Sean Kamath)
Newsgroups: comp.sys.apple
Subject: Re: Apple Drive bashing (Was: noKLICKstart in comp.sys.amiga)
Message-ID: <7108@reed.UUCP>
Date: Wed, 9-Sep-87 02:06:13 EDT
Article-I.D.: reed.7108
Posted: Wed Sep  9 02:06:13 1987
Date-Received: Thu, 10-Sep-87 07:04:15 EDT
References: <3905@well.UUCP> <341@remsit.UUCP>
Reply-To: kamath@reed.UUCP (Sean Kamath)
Organization: Reed College, Portland OR
Lines: 21

In article <341@remsit.UUCP> rem@remsit.UUCP (Roger Murray) writes:
>Being an Apple owner [Yes, I still have my ][+...], I've always wondered
>about that.  Why 39 times (or whatever it may be)?  Was there a scientific
>method used, or did the number just look good to somebody?
>
>-- 
>Roger Murray

Because Apple drives have 35 tracks, and they figured that some folks
might have 40 track drives. (most apple drives *are* 40 track drives!)
so they pull it back 39 times to get to 0, always.  Sometimes a reboot
only clacks the head 4 times.  Thats the short one.  Then again, most of
the time it bangs about 20 or so (the head is usually around track 17)

Sean kamath

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