Asynchronous Terminals and Printer Processes Configuration and Management Manual

Asynchronous Terminals and Printer Processes Configuration and Management Manual—424280-003
Glossary-1
Glossary
adapter. See ServerNet adapter.
adapter cable. (1) A cable that connects components that have incompatible electrical
interfaces. (2) For the ServerNet wide area network (SWAN) concentrator, one of four
types of cable that can connect any of the six 50-pin WAN ports to one of the
supported electrical interfaces (RS-232, RS-449, X.21, or V.35).
API. See application program interface (API).
application program interface (API). A set of functions or procedures that are called by an
application program to communicate with other software components.
ASSIGN. An HP Tandem Advanced Command Language (TACL) command you can use to
associate a file name with a logical file of a program, or to assign a physical device to
logical entities that an application uses.
assumed object. The object type or object name specified by a Subsystem Control Facility
(SCF) ASSUME command. If an ASSUME command has been used to establish a
default object type and fully qualified default object name, and if that object type and
object name together refer to a valid object, then object-spec can be omitted
entirely from an SCF command, and the command is applied to the object known as
the assumed object.
attribute. For the Subsystem Control Facility (SCF), a characteristic of an entity. For
example, two attributes of a process might be its program file and its user ID. An
attribute is sometimes called a modifier.
bit-synchronous. A type of Open Systems Interconnection (OSI) Layer-2 protocol that uses
synchronous transmission but does not require a character code to define terminal and
line control sequences.
byte-synchronous. A type of Open Systems Interconnection (OSI) Layer-2 protocol that
uses synchronous transmission techniques and requires a character code to define
terminal and line control sequences. Data is always transmitted in a block.
client. A software process, hardware device, or combination of the two that requests
services from a server. Often, the client is a process residing on a programmable
workstation and is the part of an application that provides the user interface. The
workstation client might also perform other portions of the application logic.
CLIP. See communications line interface processor (CLIP).
command. A demand for action by or information from a subsystem or the operation
demanded by an operator or application. A command is typically conveyed as an
interprocess message from an application to a subsystem.