unit
size
or
stripe
width
.
DMA —
direct memory
access
— A
channel
that allows
certain types
of
data transfer between
RAM
and a
de
vice
to
bypass
the processor.
docking device
—
See
APR.
DMTF — Distributed
Management Task Force
— A
consortium
of
hardware and software companies
who
develop management standar
d
s
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
s
p
eci
f
i
c
group
of
users.
A
user logs
on to the
domain
to
gain access
to the r
e
sources.
DRAM —
dynamic random-access memory
— Memory
that
stores
information in
integrated circuits
containing
capacitors.
driver —
Software
that
allows
the
operating system
to
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
CD
dr
ive
s
.
EMI —
electromagnetic interference
— Electrical
interference caused
by electromagnetic
radiation.
®
control
a device such as a
printer.
Many devices
do
not
ENERGY STAR —
Environmental Protection
Agency
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.
®
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
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.
DV
D
+
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).
(D
VD+R
W
technology is
different from DVD-RW technology.)
DV
D
+
RW
d
r
i
v
e
—
drive
that
can read
DVDs
and
most
CD
media and
write to
DVD+RW
(rewritable
D
V
Ds)
discs.
DVI
— digital
video interface
— A
standard
for
dig
i
tal
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
cap
a
bi
liti
es
of the
computer.
Examples
include video, modem, and sound
car
d
s.
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
ar
e
common types
of
ExpressCards. ExpressCards
support
both the PCI
Express and USB 2.0
standard.
Express Service Code
— A
numeric code located
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.
extended display mode
— A
display setting
that allows
Glossary
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