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book.book Page 204 Tuesday, November 27, 2007 10:29 AM
D
DDR SDRAM —
DDR2 SDRAM —
400 MHz.
device — Hardware such as a disk drive, printer, or keyboard that is installed in or connected to your computer.
device driver — See driver.
DIMM — dual
DIN connector — A round,
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
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,