"intelligent" disk drives

[Fred Cisin]

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