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From: e-smith@utah-cs.UUCP (Eric L. Smith)
Newsgroups: net.micro.mac
Subject: Re: 800k drives faster?
Message-ID: <3633@utah-cs.UUCP>
Date: Wed, 22-Jan-86 16:34:12 EST
Article-I.D.: utah-cs.3633
Posted: Wed Jan 22 16:34:12 1986
Date-Received: Sun, 26-Jan-86 05:12:22 EST
References: <216@a.sei.cmu.edu>
Reply-To: e-smith@utah-cs.UUCP (Eric L. Smith)
Organization: University of Utah Ada-to-Silicon project
Lines: 27

In article <216@a.sei.cmu.edu> tgl@a.sei.cmu.edu.UUCP writes:
>Apparently the new 800k drives are supposed to be twice as fast
>as the old drives.  Does anybody know how Apple did this?
>
...
>		tom lane    (ARPA: lane@a.cs.cmu.edu)

I played with one for about 15 minutes last night, and it seemed to me that
the data transfer rate is probably unchanged.  I attribute the speedup to
two factors:  twice as much data available without stepping the head (i.e.,
improved seek latency), and improvements to the file system (it didn't appear
to have to re-read the directory as often).  Of course, this is only my
opinion after playing with it for a short time...


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Eric L. Smith  (801) 581-8100  e-smith@utah-cs.arpa  ...decvax!utah-cs!e-smith
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The opinions expressed herein do not necessarily represent those of the
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