Summary

2 adapter cardadapter card An expansion card that increases thenumber of controllers and ports available on a computer.Address Resolution Protocol (ARP) Discoversthe local address (MAC address) of a station on thenetwork when the IP address is known. End stationsas well as routers use ARP to discover local addresses.The following switches are used with the ARPcommand:-a displays the cache.-d deletes an entry from the ARP cache.-s adds a permanent IP-to-MAC address mapping.administrator Someone who queries the UserRegistrar to analyze individual subscriber status andto gather data.Advanced Configuration and Power Interface(ACPI) An interface that allows the operating systemto control power management. ReplacesAdvanced Power Management (APM).Advanced Power Management (APM) An interfacethat allows the BIOS to control the settings forpower management. This has been replaced by theAdvanced Configuration and Power Interface(ACPI).Advanced Technology Extended (ATX) A standardcomputer case form factor for modern computers.Advanced Technology Extended (ATX) powerconnector A 20-pin or 24-pin internal power supplyconnector.adware A software program that displays advertisingon a computer, usually distributed with downloadedsoftware.all-in-one type printer A multifunctional devicedesigned to provide services such as printing, fax,and copier functions.alternating current (AC) Current that changesdirection at a uniformly repetitious rate. This type ofelectricity typically is provided by a utility companyand is accessed by wall sockets.American National Standards Institute (ANSI)A private, nonprofit organization that administers andcoordinates the U.S. voluntary standardization andconformity assessment system. ANSI identifiesindustrial and public requirements for national consensusstandards. It also coordinates and managestheir development, resolves national standards problems,and ensures effective participation in internationalstandardization.American Standard Code for InformationInterchange (ASCII) An 8-bit code for characterrepresentation (7 bits plus parity).analog transmission Signal transmission overwires or through the air in which information is conveyedthrough the variation of some combination ofsignal amplitude, frequency, and phase.answer file A file that contains predefined settingsand answers to the questions that are required by theoperating system setup wizard.antistatic bag Packaging material that protectscomponents from electrostatic discharge (ESD).antistatic mat A surface that provides a safe environmentfor computer components by dissipatingESD.antistatic wrist strap A device worn on the wristto dissipate electrostatic discharge (ESD) between aperson and electronic equipment.antivirus application A program that is installedon a system to prevent computer viruses from infectingthe computer.