I've never actually seen one, but they were used on several home microcomputers
back in the late 70's/early 80's. Probably trs-80 and apple ][. If my
poor memory serves, they were supposed to be somewhat between using a
slow but cheap audio cassette, and a fast but expensive floppy drive.
I think they ended up being a faster but too expensive and too unreliable
option, and thus never really caught on.
-Lawrence LeMay
What's the story with these things? They're small black and silver, and the
cassettes are tiny little clear things that look like backup tapes, or
something like that.
What do you do with them? What system are they for?
Ernest