18 Apr
2013
18 Apr
'13
9:37 a.m.
>> Btw, anyone have any blank 5.25"
floppies kicking around? ;)
> Hard sector or soft-sector?
> 300 oersted or 600? (aka "360K" V "1.2M")
> SS V DS, 48tpi V 96tpi V 100tpi, SD V DD are basically issues of testing.
On Thu, 18 Apr 2013, Cory Smelosky wrote:
Not sure yet, System hasn't been delivered yet. I
know for sure it's
1.2M but I'm not sure of the other specifications. I'll respond once I
have the drive. ;)
Except for some ridiculously r at re exceptions, "1.2M" is enough
information.
That is a double sided, double density (MFM), 96tpi (80 track) disk that
is usually spun at 360RPM, with a 500Kbits per second data transfer rate.
(like an 8" double density)
IIRC, NEC used 77 tracks (even more like an 8")
Lisa used similar media, but with a special jacket, with an extra
access hole to make it easier to put thumbprints on the disk.
AMLYN used them, with a special jacket with some extra holes for the
"record changer" mechanism.
--
Grumpy Ol' Fred cisin at xenosoft.com