NET/MASTER Network Control Language (NCL) Reference Manual

Glossary
106126 Tandem Computers Incorporated Glossary–25
Pathway system. The TCPs, servers, terminals, programs, and any subsystems
associated with Pathway that run together under the control of one PATHMON
process.
pend-unload list. A list, maintained by NonStop NET/MASTER MS, that holds in
memory copies of NCL procedures that have been unloaded from the active list while
still being executed.
Peripheral Utility Program (PUP). A Tandem utility program that allows system managers
and system operators to control and perform various maintenance operations on
peripheral devices.
permanent open access point. A pointer to a UDB that is permanently open.
persistent NCL process. An NCL process that is automatically restarted by NonStop
NET/MASTER MS after failure.
persistent process. A process that cannot restart itself after failure; that is, it relies on
another process to restart it. Application processes are persistent processes.
PFK. Program function key.
physical unit (PU). An IBM term for software resident within SNA nodes that manages
and monitors node resources.
PIU. See path information unit.
platform indicator. An indicator that identifies the platform (either NonStop
NET/MASTER MS or the SOLVE management services) on which a command can be
used.
positional qualifier. An operand that must follow a NonStop NET/MASTER MS
command in a certain position.
PPO. See primary program operator.
preloading. The reading of an NCL procedure or panel description file into memory
before it is required for execution, to improve system performance.
preparsing. Dynamically altering the design of a panel after it is defined and before it is
displayed.
primary key. The main value used to locate a record in a user database. The primary
key for records in entry-sequenced UDBs is a record address maintained by Enscribe.
The primary key for records in key-sequenced UDBs is a particular data field within a
record.
primary menu. A menu denoted by the display of a user ID and time on the right side of
the screen. NonStop NET/MASTER MS has more than one primary menu.
primary name. The name given to an entire resource, used to control access to the
resource by cooperating NCL processes.
primary processing environment. A processing environment that is controlled and owned
by an OCS window or a virtual user. The output from this environment goes to the
OCS window or virtual user, respectively.