[net.micro.cpm] Optronics Disk Control Unit

SJOBRG.ANDY%MIT-OZ%mit-mc@sri-unix.UUCP (07/06/83)

From:  Andrew Scott Beals <SJOBRG.ANDY%MIT-OZ@mit-mc>

Hmm... Golly! Most computers I know of turn their drives off after
a short period of unuse (loke my osborne), and I can't
think of any that leave the drive motors constantly spinning (maybe
the kaypro does? (i think, however, that it just leaves the drie
selected)), but if you've got a drive that does this to you,
then it would be best to install this beastie. -andy
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gray%ucla-locus@sri-unix.UUCP (07/06/83)

From:            Dr. Terry Gray <gray@ucla-locus>

Until the advent of 1/2 height 8" floppies --which use DC drive motors--
virtually all 8" drives ran continously.  It is the 8" drive problem
that Optronics is addressing.  To my knowledge, there are no 5.25"
floppies that run all the time.

--Terry Gray

BILLW%sri-kl@sri-unix.UUCP (07/07/83)

5 inch drives normally turn themselves off when they are not in use.
8 inch drives normally spin continuously.

BillW