On Tue, 17 Mar 1998 lisard(a)zetnet.co.uk wrote:
On 1998-03-15 classiccmp(a)u.washington.edu said to
lisard(a)zetnet.co.uk
:However, there are 2 things that spring to mind. Firstly Hitachi
:were associated with the Compact Floppy disks which are normally
:called 3" disks. I've just measured one and :
:It's a black plastic case measuring 3+1/8" * 3+7/8" * 3/16"
:I've attempted to measure the actual disk through holes in the case,
:and it meassures 2.8" in diameter, or thereabouts
those'll be the things amstrad used ad nauseam, yep? you can post them
for special concessionary cassette rates in japan, we're told - it kept
them alive a little while longer than they should have stayed... ;>
:Secondly, I've heard of 2.75" disk drives. Some of them were
:_sequential_ access - there was no separate head possitioner, it
:was driven by the spindle motor. You had to start at the outside of
:the disk and read all the data up to the point that you wanted.
quick disks. msx used them, as did a few early samplers (roland s10,
akai s612(?), etc) and a few other bits.
Some of the sequential access disks - albeit, in 3.5" size - were used in
small dedicated wordprocessors such as Smith Corona and Brother also.
- don
--
Communa (together) we remember... we'll see you falling
you know soft spoken changes nothing to sing within her...
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Don Maslin - Keeper of the Dina-SIG CP/M System Disk Archives
Chairman, Dina-SIG of the San Diego Computer Society
Clinging tenaciously to the trailing edge of technology.
Sysop - Elephant's Graveyard (CP/M) - 619-454-8412
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