Compatibility Guide

Glossary 163
CHAP
Acronym for Challenge-Handshake Authentication Protocol, an authentication
scheme used by PPP servers to validate the identity of the originator of the
connection upon connection or any time later.
chip
A set of microminiaturized, electronic circuits that are designed for use as
processors and memory in systems. Small chips can hold from a handful to tens
of thousands of transistors. They look like tiny chips of aluminum, no more than
1/16 inch square by 1/30 inch thick, which is where the term "chip" came from.
Large chips, which can be more than a half inch square, hold millions of
transistors. It is actually only the top one thousandth of an inch of a chip's surface
that holds the circuits. The rest of it is just a base.
CIM
Acronym for Common Information Model, which is a model for describing
management information from the DMTF. CIM is implementation independent,
allowing different management applications to collect the required data from a
variety of sources. CIM includes schemas for systems, networks, applications and
devices, and new schemas will be added. It provides mapping techniques for
interchange of CIM data with MIB data from SNMP agents.
CIMOM
Acronym for common information model object manager.
CI/O
Abbreviation for comprehensive input/output.
CLI
Abbreviation for command line interface.
cm
Abbreviation for centimeter(s).
CMOS
Acronym for complementary metal-oxide semiconductor. In systems, CMOS
memory chips are often used for NVRAM storage.