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Path: utzoo!linus!philabs!cmcl2!seismo!uwvax!planting
From: planting@uwvax.UUCP (W. Harry Plantinga)
Newsgroups: net.micro
Subject: Re: CD-ROMS
Message-ID: <241@uwvax.UUCP>
Date: Fri, 19-Jul-85 14:31:53 EDT
Article-I.D.: uwvax.241
Posted: Fri Jul 19 14:31:53 1985
Date-Received: Sun, 21-Jul-85 01:24:01 EDT
References: <11467@brl-tgr.ARPA> <550@sftig.UUCP> <1805@amdahl.UUCP>
Organization: U of Wisconsin CS Dept
Lines: 17

> Not to contradict (least of all --Lauren--, whos information has always
> been accurate as far as I can tell) but why are the basic parameters
> difficult to change?  The main thing that is causing the 2-4 second average
> seek time is the head movement time.
> ...
> Rick Thomas
> ihnp4!attunix!rbt

Suppose that the most-used unix utilities were all put in a 10 Mb band
of the compact disk.  Then since most of the seek time is head
movement time, and since 10 Mb is about 2% of the total capacity,
would the average seek time *within those 10 Mb* be about 40-80 ms?

---------------
Harry Plantinga
{seismo, allegra, heurikon, ihnp4}!uwvax!planting
planting@wisc-rsch.arpa