CLASSICCMP digest 25

From: Allen Underdown <wbrco_at_valuenet.net>
Date: Wed Apr 16 21:21:59 1997

mhop wrote:
>
> > I have a box (about 250-300) of hard-sector 5=BC"
> > disks. Anyone interested??? Sell/trade/???
>
> What are "hard-sector" disks? Not the same as a 5.25 floppy?
> mhop_at_snip.net

You can always tell the youngsters......

Hard/soft sectoring -

In the olden days of magnetic floppy media, there was a sector hole
FOR EVERY SECTOR located around the hub of the floppy. Now adays,
there is only one, and the computer keeps track of where it's at
(sector wise) by watching the data (i.e. soft sectoring).

If you rotate a regular 5.25 floppy in the sleeve now, you will only
count 1 hole. I can't remember how many sectors per track were on
the hard sector floppies (12 jumps to mind) but you would find that
many holes per revolution. Goes back to that track/cylinder concept.

God I love reading this list!

-- 
|     Allen Underdown - wbrco_at_valuenet.net         |
|  Amateur Radio Operator - N0GOM, computer geek,  |
|      homebrewer and outdoor enthusiast!          |
|          Try My BBS at 314.939.9445!             |
Received on Wed Apr 16 1997 - 21:21:59 BST

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