218 Glossarydevice — Hardware such as a disk drive, printer, or keyboard that is installed in orconnected to your computer.device driver — See driver.DIMM — dual in-line memory module — A circuit board with memory chips thatconnects to a memory module on the system board.DIN connector — A round, six-pin connector that conforms to DIN (DeutscheIndustrie-Norm) standards; it is typically used to connect PS/2 keyboard or mousecable connectors.disk striping — A technique for spreading data over multiple disk drives. Disk stripingcan speed up operations that retrieve data from disk storage. Computers that use diskstriping 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 transferbetween RAM and a device to bypass the processor.DMTF — Distributed Management Task Force — A consortium of hardware andsoftware 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 areadministered as a unit with common rules and procedures for use by a specific groupof users. A user logs on to the domain to gain access to the resources.DRAM — dynamic random-access memory — Memory that stores information inintegrated circuits containing capacitors.driver — Software that allows the operating system to control a device such as aprinter. Many devices do not work properly if the correct driver is not installed in thecomputer.DSL — Digital Subscriber Line — A technology that provides a constant, high-speedInternet connection through an analog telephone line.dual-core — An Intel® technology in which two physical computational units existinside 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 anextension of your display. Also referred to as extended display mode.DVD-R — DVD recordable — A recordable version of a DVD. Data can be recordedonly 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 writtento a DVD+RW disc, and then erased and written over (rewritten). (DVD+RWtechnology is different from DVD-RW technology.)
