[net.micro.pc] [avi@ISL at Sumex-Aim: Reading/W

akp@isrnix.UUCP (12/15/83)

#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