3.5" Altair CP/M

Roy J. Tellason rtellason at verizon.net
Sun Jun 3 12:54:09 CDT 2007


On Sunday 03 June 2007 06:38, Grant Stockly wrote:
> Were single sided single density 5.25" disks ~70k?  The 3.5" drive does
> sound different than it usually does.  : )

Well,  my recollection is that the single-sided disks on my Osborne held 183K.  
A single-sided "pc" disk held roughly 180K as well,  so half of that would be 
90K.  Those were 9 sectors/track,  and I seem to remember an 8 sectors/track 
format as well,  giving 80K?  Not too far off,  I guess.

-- 
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space,  a critter that can
be killed but can't be tamed.  --Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James 
M Dakin



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