Dell GX620 - 3.6GHz Desktop 1GB RAM 80GB Windows XP SFF User Manual page 305

that retrieve data from disk storage. Computers that use disk
striping generally allow the user to select the data unit size
or stripe width.
DMA — direct memory access — A channel that allows
certain types of data transfer between RAM and a device to
bypass the processor.
— See APR.
D O C K I N G D E V I C E
DMT F — Distributed Management Task Force — A
consortium of hardware and software companies who
develop management standards for distributed desktop,
network, enterprise, and Internet environments.
— A group of computers, programs, and devices
D O M A I N
on a network that are administered as a unit with common
rules and procedures for use by a specific group of users. A
user logs on to the domain to gain access to the resources.
DRAM — dynamic random-access memory — Memory
that stores information in integrated circuits containing
capacitors.
— Software that allows the operating system to
D R I V E R
control a device such as a printer. Many devices do not work
properly if the correct driver is not installed in the computer.
DSL — Digital Subscriber Line — A technology that
provides a constant, high-speed Internet connection through
an analog telephone line.
D U A L D I S P L A Y M O D E
you to use a second monitor as an extension of your display.
Also referred to as extended display mode.
DVD — digital versatile disc — A disc usually used to
store movies. DVDs are double-sided, whereas CDs are
single-sided. DVD drives read most CD media as well.
DVD — A drive that uses optical technology to
D R I V E
read data from DVDs and CDs.
DVD — The software used to watch DVD
P L A Y E R
movies. The DVD player displays a window with buttons
that you use to watch a movie.
DVD+RW — DVD rewritable — A rewritable version of
a DVD. Data can be written to a DVD+RW disc, and then
erased and written over (rewritten). (DVD+RW technology
is different from DVD-RW technology.)
DVD+RW — A drive that can read DVDs and
D R I V E
most CD media and write to DVD+RW (rewritable DVDs)
— A display setting that allows
discs.
DVI — digital video interface — A standard for digital
transmission between a computer and a digital video
display; the DVI adapter works through the computer's
integrated graphics.
E
ECC — error checking and correction — A type of
memory that includes special circuitry for testing the
accuracy of data as it passes in and out of memory.
ECP — extended capabilities port — A parallel connector
design that provides improved bidirectional data
transmission. Similar to EPP, ECP uses direct memory
access to transfer data and often improves performance.
EI D E — enhanced integrated device electronics — An
improved version of the IDE interface for hard drives and
CD drives.
EM I — electromagnetic interference — Electrical
interference caused by electromagnetic radiation.
®
EN ERGY STAR — Environmental Protection Agency
requirements that decrease the overall consumption of
electricity.
EP P — enhanced parallel port — A parallel connector
design that provides bidirectional data transmission.
ES D — electrostatic discharge — A rapid discharge of
static electricity. ESD can damage integrated circuits found
in computer and communications equipment.
— A circuit board that installs in an
E X P A N S I O N C A R D
expansion slot on the system board in some computers,
expanding the capabilities of the computer. Examples
include video, modem, and sound cards.
— A connector on the system board
E X P A N S I O N S L O T
(in some computers) where you insert an expansion card,
connecting it to the system bus.
E S C
X P R E S S E R V I C E O D E
on a sticker on your Dell™ computer. Use the Express
Service Code when contacting Dell for assistance. Express
Service Code service may not be available in some
countries.
— A numeric code located
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