Control Data Corporation 3300 Reference Manual page 282

ACCESS MODE
LABELING
BLOCKING
BLOCK SIZE
LOGICAL RECORD SIZE
ALLOCATION
EXPANSION
RELEASE
ACTUAL KEY
USE DECLARA TIVES
G-2
Code
S
R
s
o
D
B
U
R
F
FH
v
F
RM
Kl
K2
A
E
A
U
AR
AS
SE
LB
Meaning
SEQUENTIAL
RANDOM
STANDARD
OMITTED
data name
Blocked logical records
Unblocked logical records
RESPOND - UNIVERSAL blocking
Fixed Length - no block header
Fixed Length - eight character header
(mass storage only)
Variable length
Fixed length
Variable depending on record mark
Variable depending on data -name (key field - BCD)
Variable depending on data name (key field -
COMPUTA TIONAL-l)
File may be allocated internally
File may be expanded internally if it is in sequential
mode.
Entire file released at end of run
Unused portion released when file is closed if in
segmented, sequential mode
Actual key must be updated by user if file is random
mode
I/O control will update actual key if file is sequential
mode
Use after standard error recovery
Use before/after standard
beginning/ending label procedure
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