Bedienungsanleitung Dell Dimension C521 (Seite 127 von 140) (Englisch)

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Glossary 127

Glossary

Terms in this Glossary are provided for

informational purposes only and may or may not

describe features included with your particular

computer.

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.

AHCI — Advanced Host Controller Interface — An

interface for a SATA hard drive Host Controller which

allows the storage driver to enable technologies such as

Native Command Queuing (NCQ) and hot plug.

ALS — ambient light sensor.

antivirus software — A program designed to identify,

quarantine, and/or delete viruses from your 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.

battery life span — The length of time (years) during

which a portable computer battery is able to be depleted

and recharged.

battery operating time — The length of time (minutes or

hours) that a portable computer battery powers the

computer.

BIOS — basic input/output system — A program (or

utility) that serves as an interface between the computer

hardware and the operating system. Unless you

understand what effect these settings have on the

computer, do not change them. Also referred to as system

setup.

bit — The smallest unit of data interpreted by your

computer.

Bluetooth

wireless technology — A wireless technology

standard for short-range (9 m [29 feet]) networking

devices that allows for enabled devices to automatically

recognize each other.

boot sequence — Specifies the order of the devices from

which the computer attempts to boot.

bootable CD — A CD that you can use to start your

computer. In case your hard drive is damaged or your

computer has a virus, ensure that you always have a

bootable CD or floppy disk available. Your Drivers and

Utilities or ResourceCD is a bootable CD.

bootable disk — A disk that you can use to start your

computer. In case your hard drive is damaged or your

computer has a virus, ensure that you always have a

bootable CD or floppy disk available.

bps — bits per second — The standard unit for measuring

data transmission speed.

BTU — British thermal unit — A measurement of heat

output.

bus — A communication pathway between the

components in your computer.

bus speed — The speed, given in MHz, that indicates how

fast a bus can transfer information.

byte — The basic data unit used by your computer. A byte

is usually equal to 8 bits.

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