Summary

CMOS battery 5bus topology A network in which each computerconnects on a common cable.byte A unit of measure that describes the size of adata file, the amount of space on a disk or other storagemedium, or the amount of data being sent over anetwork. One byte consists of 8 bits of data.Ccable A set of conductors, bundled and sheathed,made of insulated copper or optical fiber, that transportsignals and power between electrical devices.cable modem Acts like a LAN interface by connectinga computer to the Internet. The cable modemconnects a computer to the cable company networkthrough the same coaxial cabling that feeds cable TV(CATV) signals to a television set.cable tie A fastener used to bundle cables insideand outside a computer.cache A data storage area that provides high-speedaccess for the system.Caps Lock indicator LED A light that shows theon/off status of the Caps Lock.card key An identity card with a chip that storesuser data, including the level of access.Category 3 A cable that is primarily used in telephoneconnections.Category 5 A cable that contains four pairs ofwires, with a maximum data rate of 1 Gbps.Category 5e A cable that provides more twists perfoot than Category 5 at the same data rate of 1 Gbps.Category 6 A cable that is enhanced with moretwists than Category 5e cable. It contains a plasticdivider that separates the pairs of wires to preventcrosstalk. It is capable of 10 Gbps.C: drive Generally the label for the first hard drivein a computer system. Drive A and Drive B arereserved for floppy drives. Drive B is rarely used oncurrent computers.cellular WAN A wide-area network that has thetechnology for the use of a cell phone or laptop forvoice and data communications.central processing unit (CPU) Interprets andprocesses software instructions and data. Located onthe motherboard, the CPU is a chip contained on asingle integrated circuit called the microprocessor.The CPU contains two basic components, a controlunit and an Arithmetic/Logic Unit (ALU).chip A small slice of silicon or germaniumprocessed to have electrical characteristics so that itcan be developed into an electronic component. Alsocalled a semiconductor.chip set Chips on a motherboard that enable theCPU to communicate and interact with the computer’sother components.CHKDSK A command used to check the integrityof files and folders on a hard drive by scanning thedisk surface for physical errors.client/server network A network in which servicesare located in a dedicated computer that respondsto client (user) requests.cluster The smallest unit of space used to storedata on a disk. Also called the file allocation unit.CMOS battery A battery that supplies power tomaintain basic configuration information, includingthe real-time clock, when the computer is turned off.