Users Guide

166 Glossary
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.
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.
CMC
Acronym for Chassis Management Controller.
CMOS
Acronym for complementary metal-oxide semiconductor. In systems, CMOS
memory chips are often used for NVRAM storage.
COMn
The device names for the first through fourth serial ports on your system are
COM1, COM2, COM3, and COM4. The default interrupt for COM1 and COM3
is IRQ4, and the default interrupt for COM2 and COM4 is IRQ3. Therefore, you
must be careful when configuring software that runs a serial device so that you
don't create an interrupt conflict.
config.sys file
The config.sys file is executed when you boot your system (before running any
commands in the
autoexec.bat file). This start-up file contains commands that
specify which devices to install and which drivers to use. This file also contains
commands that determine how the operating system uses memory and controls files.
book.book Page 166 Monday, July 7, 2008 2:59 PM