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Path: utzoo!linus!philabs!seismo!harpo!eagle!mhuxl!ihnp4!inuxc!pur-ee!isrnix!akp
From: akp@isrnix.UUCP
Newsgroups: net.micro.pc
Subject: Re: Re: [avi@ISL at Sumex-Aim: Reading/W - (nf)
Message-ID: <1255@pur-ee.UUCP>
Date: Thu, 15-Dec-83 07:32:44 EST
Article-I.D.: pur-ee.1255
Posted: Thu Dec 15 07:32:44 1983
Date-Received: Sat, 17-Dec-83 02:44:00 EST
Sender: notes@pur-ee.UUCP
Organization: Electrical Engineering Department , Purdue University
Lines: 13

#R:umcp-cs:-437900:isrnix:9500016:000:584
isrnix!akp    Dec 12 00:32:00 1983

(blah blah blah)
"Quad density" can mean one of two things: first, it meant "Double-sided AND
double-density," but then it came to mean "four times the density on one side."
I believe the standard "single density" for 5.25" disks is ~90k, like the
Osborne. Then there's "double density" with 160K or so, and "quad density" with
320K or so. Note that quad density almost always refers to 320k/disk regardless
of the method of getting it (DSDD or QD).  Somebody please correct me if
my ~'s are too far off.                            -- Allan Pratt
				...decvax!ihnp4!iuvax!isrnix!akp