Users Guide

136 Glossary
ConsoleOne
Novell ConsoleOne is a Java-based foundation for
graphical utilities that manage and administer network
resources from different locations and platforms.
ConsoleOne provides a single point of control for all
Novell and external products.
controller
A chip that controls the transfer of data between the
microprocessor and memory or between the
microprocessor and a peripheral device such as a disk
drive or the keyboard.
control panel
The part of the system that contains indicators and
controls, such as the power switch, hard drive access
indicator, and power indicator.
conventional memory
The first 640 KB of RAM. Conventional memory is
found in all systems. Unless they are specially designed,
MS-DOS
®
programs are limited to running in
conventional memory.
COO
Abbreviation for cost of ownership.
cooling unit
Sets of fans or other cooling devices in a system chassis.
coprocessor
A chip that relieves the system's microprocessor of
specific processing tasks. A math coprocessor, for
example, handles numeric processing. A graphics
coprocessor handles video rendering. The Intel
®
Pentium
®
microprocessor, for example, includes a
built-in math coprocessor.
cpi
Abbreviation for characters per inch.
CPU
Abbreviation for central processing unit. See also
microprocessor.
CRC
Abbreviation for cyclic redundancy code, which is a
number derived from, and stored or transmitted with,
a block of data in order to detect corruption. By
recalculating the CRC and comparing it to the value
originally transmitted, the receiver can detect some
types of transmission errors.
CSR
Abbreviation for certificate signing request.
cursor
A marker, such as a block, underscore, or pointer that
represents the position at which the next keyboard or
mouse action will occur.
DAT
Acronym for digital audio tape.
dB
Abbreviation for decibel(s).
dBA
Abbreviation for adjusted decibel(s).
DBS
Abbreviation for Demand Based Switching. DBS is power
management performed by switching to a low power
state (frequency and voltage) when the processor
utilization is low. It maintains application performance
while lowering the average system power.