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Glossary 159
Glossary
Terms in this Glossary are provided for informational purposes only and may
or may not describe features included with your particular computer.
A
AC — alternating current — The form of electricity that powers your computer when
you plug the AC adapter power cable in to an electrical outlet.
ACPI — advanced configuration and power interface — A power management
specification that enables Microsoft
®
Windows
®
operating systems to put a computer
in standby or hibernate mode to conserve the amount of electrical power allocated to
each device attached to the computer.
AGP — accelerated graphics port — A dedicated graphics port that allows system
memory to be used for video-related tasks. AGP delivers a smooth, true-color video
image because of the faster interface between the video circuitry and the computer
memory.
ALS — ambient light sensor — The ALS detects available environmental light and
automatically increases or decreases the display backlighting to compensate for low-
light and high-light environments.
antivirus software — A program designed to identify, quarantine, and/or delete viruses
from your computer.
APR — advanced port replicator — A docking device that allows you to conveniently
use an external monitor, keyboard, mouse, and other devices with your portable
computer.
ASF — alert standards format — A standard to define a mechanism for reporting
hardware and software alerts to a management console. ASF is designed to be
platform- and operating system-independent.
All-Terrain Grade
— Dell™ ATG™ refers to the All-Terrain Grade computer designed by
Dell to provide increased protection in demanding environments.
B
backup — A copy of a program or data file on a floppy, CD, DVD, or hard drive. As a
precaution, back up the data files from your hard drive regularly.
book.book Page 159 Tuesday, July 3, 2007 12:31 PM