The lowest and least active of
the 5 system states. Support is not available for clock management,
file data management, or communication facilities. Keypoint update is
active. Certain commands are the only allowable input.
3270 simulation
The facility that allows
3270 devices to be used in place of 2915/4505 display devices or 1977/1980
printers without requiring application code changes.
3480 format
An 18-track recording format
used when tape data compaction and auto blocking are not enabled.
3480 XF format
An 18-track recording format
used when tape data compaction and auto blocking are enabled.
3480-2 XF format
A 36-track recording format
using tape auto blocking. This format is used whether data compaction
is enabled or disabled.
4505 simulation
The facility that simulates
4505-type terminals on 3270-type terminals.
4-byte file address
A basic element of data
organization in the TPF system that is defined as a FARF3, FARF4, or FARF5
file address.
4-byte file address standard header
A
16-byte record header containing either 4-byte forward and backward chain
address fields or zeros starting at X'008'.
4x4 format
An 8-byte file address with a
high-order 4-byte indicator that contains zeros and a low-order 4-byte FARF3,
FARF4, or FARF5 address. 4x4 format is the method by which a 4-byte
symbolic file address in FARF3, FARF4, or FARF5 format is maintained as an
8-byte file address.
8-byte file address
A basic element of data
organization in the TPF system that is defined as a 4x4 or FARF6
format. See also 4x4 format.
8-byte file address standard header
A
32-byte record header containing either 4-byte forward and backward chain
address fields or zeros starting at X'010'.