BYTE: A byte is composed of several bits, and is used to represent one character—such as a letter, number, or punctuation mark. The older microcomputer systems used 8 bits per byte, but the newer ones are based on 16 or 32 bits per byte.

CHIP: A thin silicon wafer on which electronic components are deposited lithographically in the form of integrated circuits.

COBOL (Common Business-Oriented Language): A high-level programing language widely used in business applications.

COMPUTER NETWORK: Two or more computers that are connected so they can exchange information.

COMPUTER PROGRAM: A collection of instructions that together direct the computer to perform a particular function.

CP/M (Control Program for Microprocessors): A popular operating system for small computers.

CPU (Central Processing Unit): The part of the computer that controls and organizes the operations of the other parts of the computer and does the calculations.

CRT (Cathode Ray Tube): A video screen that can be used for viewing output.

DATA: The information, such as numbers or letters, that are put into the computer system.