Dell OptiPlex GX240 User Manual

Page 264

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DIN

Deutsche Industrie Normenausschuss. A German standards organization and

member of

ISO

.

DIN is also a form of connector on your computer that is round, has 5 pins,

and is typically used to connect

AT

keyboard cable connectors. See also

Mini-

DIN

.

DMA

Direct memory access. An electronic pathway or direct channel on which a

device

can bypass the

microprocessor

and transfer data directly to

RAM

. A

DMA channel is often one of the resources assigned when configuring an

expansion card

or

EIDE

drive. DMA is a recent alternative to

PIO

.

DMI

Desktop Management Interface. A standard of

WfM

that provides a method

to determine various management attributes of a computer through the use

of a standard software interface.

DMTF

Distributed Management Task Force. An industry organization leading the

development, adoption, and unification of management standards and

initiatives for desktop, enterprise, and Internet environments. Working with

key technology vendors and affiliated standards groups, the DMTF is enabling

a more integrated and efficient approach to management.

DRAM

Dynamic random-access memory (

RAM

). Referred to as “dynamic” because it

must be regularly refreshed, unlike

SRAM

, which retains a value as long as

power is supplied. See also

RDRAM

and

SDRAM

.

DRDRAM

Direct

Rambus

dynamic random-access memory (

RDRAM

). Provides a 16-bit

bus

, rather than the 8-bit

DRAM

bus. At a speed of 800

MHz

, the peak data

transfer rate is 1.6 billion

Bps

. DRDRAM uses

pipelining

to accelerate

processing, allowing up to eight operations to be performed simultaneously.

DTE

Data terminal equipment. In computer data transmission, DTE is the

RS-232

interface that a computer uses to exchange data with a modem or other

serial

device. See also

DCE

.

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