Dell XPS M2010 Owner's Manual - Page 181

Digital Subscriber Line - A technology that, DVD+RW drive - sound

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disk striping - A technique for spreading data over multiple disk drives. Disk striping can speed up operations 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. docking device - See APR. DMTF - Distributed Management Task Force - A consortium of hardware and software companies who develop management standards for distributed desktop, network, enterprise, and Internet environments. domain - A group of computers, programs, and devices 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. driver - Software that allows the operating system to 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. dual-core - An Intel® technology in which two physical computational units exist inside a single processor package, thereby increasing computing efficiency and multi-tasking ability. dual display mode - A display setting that allows you to use a second monitor as an extension of your display. Also referred to as extended display mode. DVD-R - DVD recordable - A recordable version of a DVD. Data can be recorded only once onto a DVD-R. Once recorded, the data cannot be erased or written over. 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 drive - An optical drive that can read DVDs and most CD media and write to DVD+RW (rewritable DVDs) discs. DVI - digital video interface - A standard for digital transmission between a computer and a digital video display. 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. EIDE - enhanced integrated device electronics - An improved version of the IDE interface for hard drives and optical drives. EMI - electromagnetic interference - Electrical interference caused by electromagnetic radiation. ENERGY STAR® - Environmental Protection Agency requirements that decrease the overall consumption of electricity. EPP - enhanced parallel port - A parallel connector design that provides bidirectional data transmission. ESD - electrostatic discharge - A rapid discharge of static electricity. ESD can damage integrated circuits found in computer and communications equipment. expansion card - A circuit board that installs in an expansion slot on the system board in some computers, expanding the capabilities of the computer. Examples include video, modem, and sound cards. expansion slot - A connector on the system board (in some computers) where you insert an expansion card, connecting it to the system bus. ExpressCard - A removable I/O card adhering to the PCMCIA standard. Modems and network adapters are common types of ExpressCards. ExpressCards support both the PCI Express and USB 2.0 standard. Glossary 181

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Glossary
181
disk striping
— A technique for spreading data over
multiple disk drives. Disk striping can speed up operations
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.
docking device
— See
APR
.
DMTF
— Distributed Management Task Force — A
consortium of hardware and software companies who
develop management standards for distributed desktop,
network, enterprise, and Internet environments.
domain
— A group of computers, programs, and devices
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.
driver
— Software that allows the operating system to
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.
dual-core
— An Intel
®
technology in which two physical
computational units exist inside a single processor
package, thereby increasing computing efficiency and
multi-tasking ability.
dual display mode
— A display setting that allows you to
use a second monitor as an extension of your display. Also
referred to as
extended display mode
.
DVD-R
— DVD recordable — A recordable version of a
DVD. Data can be recorded only once onto a DVD-R.
Once recorded, the data cannot be erased or written over.
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 drive
— An optical drive that can read DVDs
and most CD media and write to DVD+RW (rewritable
DVDs) discs.
DVI
— digital video interface — A standard for digital
transmission between a computer and a digital video
display.
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.
EIDE
— enhanced integrated device electronics — An
improved version of the IDE interface for hard drives and
optical drives.
EMI
— electromagnetic interference — Electrical
interference caused by electromagnetic radiation.
ENERGY STAR
®
— Environmental Protection Agency
requirements that decrease the overall consumption of
electricity.
EPP
— enhanced parallel port — A parallel connector
design that provides bidirectional data transmission.
ESD
— electrostatic discharge — A rapid discharge of
static electricity. ESD can damage integrated circuits
found in computer and communications equipment.
expansion card
— A circuit board that installs in an
expansion slot on the system board in some computers,
expanding the capabilities of the computer. Examples
include video, modem, and sound cards.
expansion slot
— A connector on the system board (in
some computers) where you insert an expansion card,
connecting it to the system bus.
ExpressCard
— A removable I/O card adhering to the
PCMCIA standard. Modems and network adapters are
common types of ExpressCards. ExpressCards support
both the PCI Express and USB 2.0 standard.