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APPENDIX F
Diskette Description, Handling, and Format
8.
The
sur~ace
oT
the diskette should never be wiped
or
cleaned.
Any
physical
contact
with
the
surface should be avoided.
9.
The diskette should
never
be
To~ced
into
the
drive.
Neither should the diskette
be
rolded or
bent.
10.
The door on the
diskette
drive
should
not
be
closed
before the diskette has been inserted all
the
way.
Damage
to
the
drive
hub
hole
can
result.
Likewisel
the door on the drive should
be
~~lly
opened
be~ore
the diskette is removed.
The diskette mayor may not have
a
write-protect
hole
along
the
edge that is inserted first into the drive.
This
hole is located 6.25 inches from the right edge as seen
from
above
the
diskette.
When
the
hole
is
not covered, the
diskette is write protected.
The hole
must
be
covered
in
order
to
write
on the diskette.
An opaque adhesive-backed
label or tape can be used to cover the hole.
The Single-sided diskette is recorded in a
format
that
is
similar
to
the Single-sided
single-densit~
format of an
IBM-3740
diskette.
The
detailed
format
description
is
contained
in· the
IBM
document
number
GA21-9190-3,
IIIEM
One-sided Diskette OEM Information"J Appendix B.
The
format
described in that appendix is in reference to IBM part number
2305830.
The single-sided format
is
similar
to
the
IBM
3740
format
insofar
as
~ne
addressing information is concerned.
The usage and content of the actual sectors and
c~linders
is
not
necessaril~
similar.
The
double-sided
diskette
is recorded in the Motorola
single-densit~
double-sided
format.
This
format
is
an
extension
of the single-sided single-density format onto the
other side of the diskette.
Appendix A gives the location of
the phsyical sectors with respect to surface and cylinder for
both s1ngle- and double-sided diskettes.
.--......,
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