On Tue, 17 Mar 1998 lisard_at_zetnet.co.uk wrote:
> On 1998-03-15 classiccmp_at_u.washington.edu said to lisard_at_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...
>
>
donm_at_cts.com
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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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Received on Tue Mar 17 1998 - 14:06:44 GMT