19 Nov
2009
19 Nov
'09
5:04 a.m.
On 18 Nov 2009 at 17:25, Fred Cisin wrote:
Wang sometimes used 32 SPT hard-sectored
32 sector 8" disks are common with other manufacturers as well.
Other than the ancient oddball IBM 8-sector (?) format, 32 sector is
pretty much the HS format in 8".
The gotcha is that several 8" drives can be jumpered to divide the
sector marks to 16 or 8 sectors. These are commonly the ones with
separate INDEX and SECTOR outputs. I suspect external circuitry was
also used to do the same with drives that didn't explicitly support
hard sectoring.
--Chuck