NET/MASTER Network Control Language (NCL) Programmer's Guide

Glossary
106160 Tandem Computers Incorporated Glossary–35
target label. In an NCL procedure, the label following a core statement for which the
core statement searches.
target NCL ID. The NCL identifier following a NonStop NET/MASTER MS command
for which the command searches.
target position. In an NCL procedure, a code position identified by a label.
TCP. See terminal control process.
term. The basic unit of an expression in NCL. There are five types of terms: symbols,
quoted strings, variables, parenthesized expressions, and function references.
terminal control process (TCP). The Guardian process that interprets SCREEN COBOL
object code, handles input-output to operator terminals, and sends messages to server
processes.
terminal definition record. The record created when defining a terminal to NonStop
NET/MASTER MS.
test mode. A mode that forces NonStop NET/MASTER MS to load an NCL procedure
from disk and compile it before executing it, rather than attempting to find a compiled
version.
text. A string of characters that does not modify the action taken by a NonStop
NET/MASTER MS command.
text or a number. An NCL expression following a verb keyword that NCL regards as
text or a number. The expression terminates at the next keyword or at the end of the
statement.
TH. See transmission header.
thaw. The act of reactivating RMS rules for a subject. You thaw a frozen subject.
time prefix. The identifier that can precede an unsolicited message displayed on an OCS
window. It indicates the time the message was generated.
time-based rule. An RMS rule that invokes a timer to perform tasks at specific times
under the control of a specified user.
timer command. The AT or EVERY command, used to execute a NonStop
NET/MASTER MS command at a certain time or a certain frequency.
timer driver. An NCL procedure that loads RMS time-based rules as timers.
timer ID. An identifier assigned to a timer command by a user.
timer queue. The queue holding AT and EVERY commands pending execution.
tokenization. The process of splitting a message into parts. Also, in NCL, the process of
converting lexical elements to machine language.
top level. The highest level in a hierarchy of nested blocks: for example, the procedure
that encloses all other procedures and functions.
top-level environment. The environment in which the NCL processes that display
NonStop NET/MASTER MS menus operate.