TS/MP System Management Manual (H06.05+, J06.03+)

Glossary
HP NonStop TS/MP System Management Manual—541819-007
Glossary-27
terminal
processing is completed or when a STOP TERM or ABORT TERM command is
issued. Names of temporary TERM objects begin with a number. See also configured
TERM object and TERM object.
terminal. An I/O device capable of sending and receiving information over communications
lines.
terminal context. Data maintained by a TCP for each active terminal under its control.
terminal control process (TCP). A process used for terminal management and transaction
control, provided by Tandem as part of the Pathway/TS product. A TCP is a
multithreaded process that interprets compiled SCREEN COBOL requester programs
(screen programs) in the user’s application, executing the appropriate program
instructions for each I/O device or process the TCP is configured to handle. The TCP
coordinates communication between screen programs and their I/O devices or
processes and, with the help of the PATHMON process, establishes links between
screen programs and server processes. See also requester and SCREEN COBOL.
terminal data area (TDA). In SCREEN COBOL, the area that the TCP allocates for terminal
context data. The MAXTERMDATA parameter of the PATHCOM SET TCP command
defines the upper limit for this data area.
TERM object. A definition of a task that uses a SCREEN COBOL program to control an
input/output device such as a terminal or workstation, or an input/output process such
as a front-end process. A TERM object can be either explicitly configured with an ADD
command or created by the PATHMON process through a PATHCOM RUN
PROGRAM or SPI START PROG command. TERM objects created by the latter
method are called temporary TERM objects. See also configured TERM object and
temporary TERM object.
thaw condition. A condition in which prohibition of communication between a terminal and
a server class is lifted. See also freeze condition.
thread. A task that is separately dispatched and that represents a sequential flow of control
within a process (for example, a TCP).
throughput. The number of transactions a system can process in a given period, such as
one second.
TMF. See Transaction Management Facility (TMF) subsystem.
TMF level recovery. Recovery of the database to a consistent state through the use of the
TMF subsystem. When a failure occurs, the TMF subsystem allows the application to
back out the entire transaction, returning the contents of the database to the values it
held when the transaction was started. The application can then retry the transaction.
TNS. See Tandem NonStop Series (TNS).
TNS/R. See Tandem NonStop Series/RISC (TNS/R).