Dell Command Line Interface manual Coo, Cpu, Crc, Csr, Dat

config.sys file

The config.sys file is executed when you boot your computer (before running any commands in the autoexec.batfile). 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.

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 computer 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 computers. Unless they are specially designed, MS-DOS®programs are limited to running in conventional memory.

COO

Acronym for cost of ownership.

cooling unit

Sets of fans or other cooling devices in a system chassis.

coprocessor

A chip that relieves the computer'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. A complex text file generated by a Web server to identify and authenticate systems that seek connections to other systems. The digital signature that is present in every CSR contributes to secure identification of systems.

When a remote access controller is present on a system running Server Administrator, the CSR that comes with the remote access controller belongs to Dell. If your company wants to generate its own CSR, you can request a unique CSR from a certificate authority and overwrite the Dell CSR.

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).

DC

Abbreviation for direct current.

device driver

A program that allows the operating system or some other program to interface correctly with a peripheral device, such as a printer. Some device drivers—such as network drivers—must be loaded from the config.sys file (with a device= statement) or as memory-resident programs (usually, from the autoexec.bat file). Others— such as video drivers—must load when you start the program for which they were designed.

196

Glossary