14 Dec
2020
14 Dec
'20
2:55 a.m.
Fred Cisin via cctalk:
(...)
The Seagates were commodity drives, used in almost
everything.
Number is approximately the unformatted capacity.
ST506 was 5MB formatted (305 Cyl x 2 heads) ;
The ST-506 had 2 platters, 4 heads. Mechanically the ST-506 and the
ST-412 are mostly the same. The track-to-track-distance and the position
of the inner and outer track differ.
ST412 added buffered seek, was 10MB formatted (306 cyl
x 4 heads).
Yes, but there are later versions auf the ST-506 with microcontroller on
it. Don't know if they already allowed buffered seek, but I think so.
--map
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Martin Peters
martin at shackspace.de