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Access

to get at or into

Application

a computer program that does a user-oriented job

Calculate

To figure, as to add, subtract, multiply, and so on

Character

A single letter, digit, or special symbol such as ?, #, or *.

Chip

An integrated circuit. A thin piece of silicon that contains all the components of an electronic circuit.

Command

A message from the user to the computer that tells it what do next..

Compatible

A term that describes hardware and software that can work together. .

Computer

A device used to accept, process, store, and get information

Cursor

A symbol, such as a square or underline bar, that shows where you are on the screen; the cursor may flash or blink..

Data

The symbols used to represent facts, events, or things; the raw material of information.

Data Processing

A set of methods for collecting, handling,and outputting data to reach certain goals.

Disk

A flat, circular piece of metal of plastic coated with magnetic material and used for storing data.

Disk Drive

The device used to store data on a disk and to read what is stored on the disk.

Expansion Slot

A connector inside a computer desgned to allow a user to add printed circuit boards daughter boards to the motherboard.

Floppy disk

A reusable magnetic storage medium that uses a
thin mylar circular disk as a the storage surface.

Hard Copy

Output that is printed on paper.

Hardware

The physical parts that make up a computer system-for example, keyboards, printers, monitors, and so on.

Information

A set of data that has meaning and is useful.

Input

The step in the data processing flow during which datais collected and entered into the computer.

Integrated Circuit

Circuitry whose parts are etched together on a small silicon chip less than fourth of an inch square.

Keyboard

An input device that usually has keys like those on a typewriter.

Kilobyte

1,024 storage units often rounded to 1,000 a measure of a computer memory.

Load

To put a program into a computer's primary memory from a disk or tape.

Megahertz

A measure of speed, one million cycles per second.

Memory

A place to store information; usually coded in a binary format; see RAM, ROM.

Menu

A list of choices shown on the screen from which the user picks a command or data to enter into the computer..

Microcomputer

A complete computer that has relatively few electronic parts and peripheral devices.

Moniter

A video display device or screen used for showing output.

Motherboard

The main ciruit board of a computer housing the microprocessor and providing the means of connecting all the components that make up the computer.

Mouse

A computer input device used as a pointing and drawing instrument by selecting specific positions on the monitor display.

Output

The step in the data processing flow in which information comes from a computer as a result of processing.

Peripheral Device

A device that is attched to the computer and aids in input and/or output.

Primary Memory

The section of a computer that holds instructions, data, and intermediate and final results during processing; also known as internal storage, main storage, primary storage, or random access memory (RAM)

Printer

A machine that prints characters or other images on paper.

Processing

The second step of the data processing flow in which the computer acts on data.

Program

A set of step-by-step instructions that tell a computer exactly how to do a certain task.

Programing Language

A code in which a computer program is written.

Random Acess Memory

Form of primary memory in which instructions and data can be read, written, or erased.

Read

Term used to describe the computer's activity of getting an item in memory and interpreting it.

Read Only Memory

Form of primary memory that holds items that can be read but not erased or changed by normal comuter input.

Scanner

A machine that changes images from paper or photos into a digital form that the computer can use.

Secondary storge

All storge materials other than primary memory.

Simulation

A c~mpuler program that imitates a real-world situation; it can show what happens when conditions in that situations are changed.

Soft copy

A temporary display of output seen on a monitor.

Software

Prgrams, or instructions, that tell a computer exactly what to do.

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