Ethernet Adapter Installation and Support Guide

Glossary
Ethernet Adapter Installation and Support Guide—425684-003
Glossary-13
code segment
code segment. A segment that contains program instructions to be executed plus related
information. Code segments cannot be altered by an application program; they are
read from disk but never written back to disk.
code set. Codes that map a unique numeric value to each character in a character set,
using a designated number of bits to represent each character. Single-byte code sets
use 7 or 8 bits to represent each character. The ASCII and ISO 646 code sets use 7
bits to represent each character in Roman-based alphabets; these code sets are very
limited and are not appropriate for international use. The single-byte ISO 8859 code
sets use 8 bits to represent each character and can therefore support Roman-based
alphabets and many others including Greek, Arabic, Hebrew, and Turkish. Multibyte
code sets represent characters that require more than one byte, such as East Asian
ideographic characters.
cold load. A synonym for system load or load (in the case of single processor load). System
load or load is the preferred term in HP NonStop™ S-series system publications.
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.
command file. An EDIT file that contains a series of commands and serves as a source of
command input.
common applications environment (CAE). A computer environment in which applications
can be ported across all X/Open branded products because of the use of international
and industry standards. A CAE is an open system application development
environment, an open system execution environment, or a combination of the two.
common base board (CBB). In modular customer-replaceable units (CRUs), the printed
wiring assembly (PWA) that plug-in cards (PICs) are installed in.
Common Communication ServerNet adapter (CCSA). A ServerNet adapter that provides
an HP NonStop™ S-series integration platform for Signaling System Number 7 (SS7)
protocol communications.
common mode. Electrical interference that can be measured as a ground-referenced
signal. In true common mode, a signal is common to all of the current-carrying
conductors.
common-mode transients. Transients that appear between both inputs of a circuit and a
common reference (such as ground).
communications line. A two-way link consisting of processing equipment, I/O devices,
protocol conventions, and cables that connect a computer to other computers.
communications line interface processor (CLIP). The major programmable device within
the ServerNet wide area network (SWAN) concentrator, providing link-level protocol