Control Data Corporation 3300 Reference Manual page 281

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INPUT/OUTPUT SUMMARY TABLE
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This table indicates the various feaD.lreS included in COBOL for performing input/output operations
on a data file. The list which follows is a guide for cross referencing the table.
Summary of I/O Options
Hardware Type
Mass Storage System
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Unit Record
Options
Magnetic Files (INP,
CRT
Reader, Printer,1
Permanent Scratch Tape OUT, PUN) TTY Punch
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Access Mode
S,R S,R S S
S S
Labeling S
a
S,O,D S,O,D
a
S,O,D
Blocking B,U,R B,U,R
B,U U
U U
Block Size FH
FH F,V X
X X
Logical Record F,RM, F,RM,
F,RM,KI F F
F
Size Kl,K2 KI,K2
Allocation A A
X X
X X
Expansion E
E X
X X X
Release U A
X X
X X
Actual Key AR,AS
AR,AS X X
X X
Use Declaratives SE,LB
SE SE,LB LB
X
LB
Open 03,04 03,04
01,02,04 04 03,04
04
Close CI CI
CI,C2, CI CI
CI
C3,C4
Read RI,R2
RI,R2 RI RI RI
RI
Write WI,W2 WI,W2
WI WI WI
WI
Seek S S
X X X
X
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