Summary

8 Device ManagerDevice Manager An application that displays a listof all the hardware that is installed on the system.diagnostic software Programs that assist in thetroubleshooting process.diagnostic toolsserver.Utilities that monitor the networkdialup networking (DUN) Using the public telephonesystem or network to communicate.differential backup Backs up all the files that havebeen created or modified since the last full backup. Itdoes not reset the archive bit.digital audio tape (DAT) A tape standard that uses4-mm digital audiotapes to store data in the digitaldata storage (DDS) format.digital linear tape (DLT) Technology that offershigh capacity and relatively high-speed tape backupcapabilities.digital multimeter (DMM) A tool that combinesthe functionality of a voltmeter, ohmmeter, andammeter into one easy measuring device.digital subscriber line (DSL) A public networktechnology that delivers high bandwidth over conventionalcopper wiring at limited distances. Alwaysontechnology that allows users to connect to theInternet.digital versatile disc (DVD) A removable mediumthat is used primarily for movie and data storage.Digital Visual Interface (DVI) An interface thatsupplies uncompressed digital video to a digitalmonitor.direct current (DC) Current flowing in one direction,as used in a battery.direct memory access (DMA) A method ofbypassing the CPU when transferring data from themain memory directly to a device.directory 1) A type of file that organizes other filesin a hierarchical structure. 2) Related program anddata files organized and grouped in the DOS file system.3) A place to store data in the Windows filemanagementsystem.disk cleanup Disk-management software that isused to clear space on a hard drive by searching forfiles that can be safely deleted, such as temporaryInternet files.disk management A system utility used to managehard drives and partitions, such as initializing disks,creating partitions, and formatting partitions.disk operating system (DOS) A collection of programsand commands that control overall computeroperations in a disk-based system.display A computer output surface and projectingmechanism that shows text and graphic images.DNS poisoning Changing the DNS records on asystem to point to false servers where the data isrecorded.docking connector A socket used to attach a dockingstation to the laptop.docking station A device that attaches a laptop toAC power and desktop peripherals.domain A logical group of computers and electronicdevices with a common set of rules and proceduresadministered as a unit.