18 Nov
2007
18 Nov
'07
11:24 p.m.
On Sun, 18 Nov 2007, Roy J. Tellason wrote:
Speaking of which, I recall seeing announcements
every so often of floppy
drives that would have seriously more capacity than the usual stuff.
Something about "vertical format" sticks in my mind, though not much more
than that. Is this what that LS120 was all about? I think I ever only
encountered _one_ of those drives...
IIRC, the 2.8M is vertical recording, with a Barium Ferrite diskette.
(also called "4M" (unformatted capacity) by NeXT)
If'n anybody wants to call it "2.88M", then multiply 2 * 80 * 36 * 512
and tell me exactly how many bytes are in your "megabyte"s.
A lot of the increased capacity of LS120, ZIP, Drivetek, and Floptical
came from cramming a LOT of tracks on the disk, requiring various servo
systems, and generally a significant loss of reliability.
It seems like a long time since I've seen a Bernoulli drive.
--
Grumpy Ol' Fred cisin at xenosoft.com