16 Apr
1997
16 Apr
'97
2:29 p.m.
On Wed, 16 Apr 1997 22:23:30 -0400, this arrived on the list from
the esteemed Mr. Allen Underdown:
In the olden days of magnetic floppy media, there was
a sector hole
FOR EVERY SECTOR located around the hub of the floppy.
All very well and good, but there's that one extra you forgot
about. ;-)
Yes, hard-sectored disks _do_ have a hole to denote the beginning
of each sector, but to indicate the beginning of a _track_ they use
two adjacent holes. In soft-sectored disks, the single hole serves
to signal the beginning-of-track; the individual sectors are defined
via headers recorded during the format operation.
God I love reading this list!
With all due respects to Mr. Mel Brooks: "Ditto!"
______________________________________________________________________
| | |
| Carl Richard Friend (UNIX Sysadmin) | West Boylston |
| Minicomputer Collector / Enthusiast | Massachusetts, USA |
| mailto:carl.friend@stoneweb.com | |
| http://www.ultranet.com/~engelbrt/carl/museum | ICBM: N42:22 W71:47 |
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