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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 — provides port replication, cable management, and security features to adapt your notebook to a desktop workspace.
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
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,
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+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 drive — 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
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Glossary