TS/MP System Management Manual (G06.24+, H06.03+)

Glossary
NonStop TS/MP System Management Manual—541819-001
Glossary-3
client/server model
client/server model. A model for distributing applications. In general, but not always, in
this model the client process resides on a workstation and the server process resides
on a second workstation, minicomputer, or mainframe system. Communication takes
the form of request and reply pairs, which are initiated by the client and serviced by the
server. (A server can make requests of another server, thus acting as a client.)
Client/server computing is often used to connect different types of workstations or
personal computers to a host computer system by means of supported
communications protocols. See also requester/server model.
client/transaction server model. A model for client/server applications. The
client/transaction server model is the model of choice for high-volume OLTP
applications in which transaction volume is great and the processing requirements
change infrequently.
In the Tandem environment, an application following this model divides processing
between a client running on a workstation and servers running on a Tandem system.
The client handles the user interface and business logic and processing. The servers
store information for use by the client and handle database input and output functions.
Interprocess communication (IPC) messages transfer data between client and server.
COBOL. The Tandem compiler and run-time support for the American National Standards
Institute (ANSI) programming language COBOL, X.3.23-1985. Pathway server
processes are often written in this language.
cold start. The operation that starts a PATHMON environment for the first time. This
operation either creates a new PATHMON configuration file (PATHCTL file) that
defines the PATHMON environment and its objects or overwrites an existing
PATHMON configuration file (which effectively creates a new PATHMON
environment). See also cool start.
command file. A file that serves as a source for command input. For example, users can
prepare a command file containing PATHCOM or SCREEN COBOL Utility Program
(SCUP) commands. They can then cause the commands in the file to be executed by
issuing the PATHCOM or SCUP OBEY command and specifying the name of the file.
Alternatively, they can specify this file as the input file when they execute PATHCOM
or SCUP.
command interpreter. An interactive program used to run programs, check system status,
create and delete disk files, and alter hardware states.
command terminal. A terminal at which a system manager or operator enters commands
for configuration and management, such as the PATHCOM commands that configure
and manage a PATHMON environment. See also application terminal.
complex instruction-set computing (CISC). A processor architecture based on a large
instruction set, characterized by numerous addressing modes, multicycle machine
instructions, and many special-purpose instructions. See also reduced instruction-set
computing (RISC).