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Computer Vocabulary



Binary: the number system that computers use; it uses only two digits 1, and 0.


Bit: the smallest amount of information known.


Bug: a computer error


Byte: a unit of storage in a computer; it is equal to eight bits.


CD-ROM (Compact disc Read Only memory): A flat metallic disc that contains a large amount of permanently stored information read optically.


Computer: a machine that takes data in the form of number, words, or symbols, and performs operations according to the directions given.


Computer Science: the science of using computer to solve problems.


CPU (Central Processing Unit): The heart of the computer where instructions are carried out and the overall activity is controlled.


Cursor: the blinking symbol on the computer screen.


Data: information of any kind; collection of facts.


Database: a collection of information stored in a computer and designed for quick retrieval, expansion, and updating.

            EX. Microsoft Access,


Debugging: finding and correcting errors in computer software.


Disk: a thin disk of magnetic material capable of storing a large amount of information


Disk Drive: the device that reads and records information on disks.


File: a collection of related information stored and dealt with as a unit.


Fixed disk: a disk that is permanently mounted in a disk drive.


Graphics: the part of computer science dealing with pictures.


Hardware: the Physical equipment in a computer system: includes; Keyboard, disk drive, printer, monitor, etc.


Information: data that is organized


Input: data going into the computer.


Memory/Storage: the part of the computer that stores information, data and instructions.


Modem: A device connected to a computer and a telephone line that lets you send and receive information via the telephone line to and from other computers.


Monitor: The TV screen connected to a computer; also called CRT (Cathode Ray Tube), a screen or a video display terminal.


Mouse: a small, hand-held device with rollers on its base which, when rolled across a flat surface, controls the cursor on the screen.


Operating System: A collection of programs that controls how your computer system runs and processes information.


Output: Data or information coming out of the computer


Peripherals: any accessory that can be connected to the computer, such as printer, joystick, disk drive, modem, scanner, zip drive, CD-ROM, tape drive backup.


Printer: A device that makes computer output visible on paper.


Program: a set of instructions telling the computer what to do.


Software: another word for computer program.


Spreadsheet: a program that organizes numeric data into columns and rows; commonly used for checkbook balances, budgeting, and finding averages and percentages.

            EX: Microsoft Excel


Web Browser: A program used to view files on the internet.

            EX: Microsoft Internet Explorer, Netscape


Web Editor: A program used to create web pages and other internet files.

            EX: Microsoft FrontPage


Word Processor: a computerized system used to store, edit duplicate, and transmit documents (Letters, reports, etc.)

            EX: Microsoft Word