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A t no t i m e s h o u l d the s u r f a c e of the m e d i a b e t o u c h e d , o r the s u r f a c e o f the
e n v e l o p e b e w r i t t e n on.
to its p r o t e c t i v e s t o r a g e e n v e l o p e .
F o r r e l i a b l e o p e r a t i o n , f lo p p y d i s k s s h o u l d b e s t a b i l i z e d in the s a m e e n v i r o n m e n t
a s the u s i n g d i s k d r i v e s , f o r a p e r i o d of at l e a s t f i v e m i n u t e s , p r i o r to i n s t a l l a t i o n .
T h e r e c o m m e n d e d fl o p p y d i s k m e e t s the r e q u i r e m e n t s o f the f o l l o w i n g d o c u m e n t s :
X 3 1 3 8 / 7 7 - 1 1 8
G A 2 1 - 9 1 9 0
E C M A / T C 1 9 / ? 7 / l 6
F l o p p y d i s k c h a r a c t e r i s t i c s a r e l i s t e d in T a b l e 1-1.
F u n c t i o n
D i s k T y p e
D i s k D i a m e t e r
D i s k T h i c k n e s s
R o t a t io n a l S p e e d
R o t a t io n a l P e r i o d
A v e r a g e L a t e n c y
T r a c k s
T r a c k D e n s i t y
Bit D e n s i t y
Note:
F o r m i n i m u m runout the flo pp y d i s k s h o u l d be lo ad ed w h i l e the s p i n d l e is
turning.
When not in u s e , the d i s k c a r t r i d g e sho uld be r e t u r n e d
A m e r i c a n N a t i o n a l St andard f o r S i n g l e Sided
U n f o r m a t t e d F l e x i b l e D i s k C a r t r i d g e .
IBM O n e - S i d e d , O r i g i n a l E q u i p m e n t M a n u f a c t u r in g
I n f o r m a t io n .
D ata I n t e r c h a n g e o n 200 m m D i s k C a r t r i d g e s u s in g
dou ble f r e q u e n c y r e c o r d i n g at 1 3 , 2 6 2 ftpra d on on e
s i d e .
T a b l e 1-1.
F l o p p y D i s k C h a r a c t e r i s t i c s
C h a r a c t e r i s t i c s
ANSI St andard
7. 88 i n c h e s
0. 003 inch
3 60 r p m
166. 67 m s
83. 33 m s
77
48 tpi
3268 bpi ( s i n g l e d e n s it y )
65 36 bpi (double d e n s i t y )
1 -4
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