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recording
surface
become
contaminated
or
allocation of space on the disk must be made
smudged with dirt, then the disk must be re
around the bad track. For example, if track fOLlr
placed.
on a particular disk is bad, no files will be
If however, a bad spot develops on the disk
allocated space on any track referenced as "track
due to excessive wear on a particular track, then
four". On IBM formatted disks, when a bad track
it may be desirable to flag the affected track as
is bypassed, its original track number is assigned
being defective in order to keep the remainder of
to the next good track toward the center of the
the disk in use. When a track becomes defective,
disk.
)
DISKETTE DEVICE
5-6
AT04
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