-----
----
(3) The write-protect sensor disables the Diskette Drive electronics
whenever a write-protect tab
is
applied to the diskette.
For
Interface Information, refer to the Diskette Drive Adapter
section.
~
Diskettes
The IBM 5-1/4" Diskette Drive uses a standard 133.4 mm (5.25 in.)
diskette.
For
programming considerations, single sided, double density
soft sectored diskettes are used. The figure below
is
a simplified
drawing
of
the diskette used with the Diskette Drive. This recording
medium
is
a flexible magnetic disk enclosed in a protective jacket. The
protected disk, free to rotate within the jacket,
is
continuously cleaned
by the soft fabric lining
of
the jacket during normal operation.
Read/Write erase head access
is
made through an opening in the jacket.
Openings for the drive hub and diskette index hole are also provided.
3.S6
mm
(D.140
INCH)
630
+ 0.25
mm
133.4
mm
11---
I -
I~Fr{025+
0.01
INCH)
j-
(5.251NCH)
I 1
~~~~~~TlVE~
/'
--
- -
----
"-..
I - JACKET I
-,
/
1
IOXIDECOATED
to
\\
~
9)
E~
133.4mm I
MYLARDIS~.
_____
m
~
@
~~
{5025
j
1NCHI
(
\0)
SPINDLE
1
LINER
m gf I
r~
~
~g~~ss
/
___
'33.4mm
-j-
-
~.'-....
·O~~~/:~TU/RE
/
1... (5.25
INCH)
-
I
RECORDING
MEDIUM
2-111