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
  --
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 you know soft spoken changes nothing             to sing within her...
  
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         Chairman, Dina-SIG of the San Diego Computer Society
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