On Tue, 16 Aug 2022 at 23:51, Fred Cisin via cctalk
<cctalk(a)classiccmp.org> wrote:
1) because they need to keep reinforcing until the very last SA400 is
buried.
2) It became the recognizable indicator for which disks were which,
especially for those who wouldn't read the label.
With a hib-ring is prob'ly a low density;
without a hub-ring was either early low density, or "HD".
This became a big argument on Fesse Bouc a few months back, with some
people ferociously and insistently telling me that the presence or
absence of a hub ring was an absolutely foolproof, categorical, 100%
correct was to tell 360kB from 1.2MB disks, always, no exceptions, and
everyone in the world knew that, apart from me.
I should have thought to consult with The Guru.
I had to look up SA400. I'm too young.
The Smithsonian has one. They say it's a 3¼ inch drive.
https://www.si.edu/object/microcomputer-peripheral-shugart-sa400-disk-drive…
*Sigh*
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