On Mon, 1 Sep 1997, Marvin wrote:
> Roger Merchberger wrote:
>
> > At 05:02 PM 8/31/97 -0700, you wrote:
> >
> > >> Don,
> > >> A small nit to pick, but _all_ 3.5" floppies are 135 tracks/inch. This
> > is
> > >> true from my SSSD 200K Tandy Portable Disk Drive 2 for my Tandy 200,
> > all
> > >> the way up to 2.88Meg 3.5" floppy drives.
> > >
> > >No, I meant exactly what I said - and for the record, 1.44mb 3.5" and 1.2
> >
> > >5.25" floppy drives are 96 tracks/inch (tpi), not 135.
>
> With this discussion of TPI, I am aware of the 5 1/4" 48 and 96 TPI, the 3
> 1/2" 135 TPI, and the Micropolis 100 TPI drives, but what other formats are
> out there? Anyone know of any online resources for this info? I checked
> the Accurite home page and they only mention (at least as far as I could
> find) 48, 96, and 135 TPI for the 3 1/2" and 5 1/4" drives. What about the
> 8" drives as well as "oddball drives" such as the 2" floppy disk (I think
> that is the size)?
The 8" drives are 48tpi also.
- don
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 Mon Sep 01 1997 - 13:47:27 BST