NEC Express 5800 120Eg, User Manual

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120Eg User Guide - Glossary
Glossary - 2
CD-ROM drive
(Compact Disk ROM drive) A type of mass storage device that reads information from
a compact disk.
CMOS
(Complimentary Metal-Oxide Semiconductor) A type of low-power integrated circuit
used in computers. See also TTL.
COM1 or COM2
The name you can assign a serial port to set or change its address. See also serial port.
command
An instruction that directs the computer to perform a particular operation.
configuration
The way in which a computer is set up to operate. Some configurable options include
CPU speed, serial port designation, and memory allocation.
CPU
(Central Processing Unit) See microprocessor.
D
DC
(Direct Current) The type of current available in the rechargeable battery packs used in
portable computers. See also AC.
default
The factory setting your computer uses unless you instruct it otherwise. For example,
when powering up, the computer will boot from the default drive.
device driver
A software program that a computer must use to recognize and operate certain hard-
ware, such as a mouse or a video monitor.
disk drive
A device that stores data on a hard or floppy disk. A floppy disk drive requires a floppy
disk to be inserted; a hard disk drive has a permanently encased hard disk.
DOS
(Disk Operating System) See operating system.
E
ECC
(Error Checking and Correction) A method of detecting and correcting errors.
expansion slot
A connector on the backplane board in desktop computers and expansion boxes that
allows you to install circuit cards.