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to get at or into


a computer program that does a user oriented job


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


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


an intregrated circuit.A thin piece of silicon that contains all the componets of an electronic circuit


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


a term that describes hardware and software that can work together


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


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


the symbols used to present 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


a flat, circular piece of metal or 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 it stored on a disk

expansion slot

a connector inside a computer designed to allow a user to add printed circuit boards daughter boards to the mother board

floppy disk

the nickname given to flexible magnetic disks

hard copy

output that is printed on paper


the physical parts of the computer system that you can touch and feel such as the keyboard , monitor , and computer case


a set of data that has meaning and is useful


the step in the data processing flow during which data is collected and entered into the computer

integrated circuit

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


an input device that usually has keys like those on a typewriter


2^10 storage units (1024 bytes) often rounded to 1000; a measure of computer memory


to put a program into a a computers primary memory from a disk or tape


a measure of speed, one million cycles per second


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


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


a complete computer that has relatively few electronic parts and peripheral devices


a video display device or screen used for showing output


the main circuit board of a computer housing the microprocessor and providing the means of connecting all the components that make up the computer. Provides a means for adding special control units such as sound boards to the computer via expansion slots or sockets


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


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 attached to the computer and aids in input and/or output

primary memory

the section of the computer that holds instuctions, data, and intermediate and final results during processing: also known as internal storage, main storage, primary storage, or random access memory


a machine that prints characters or other images on paper


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


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

programming language

a code in which a computer program is written

random access memory

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


term used to describe the computers 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 computer input


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

secondary storage

all storage materials other than primary memory


a c~mpuler program that imitates a real world situation: it can show what happens when conditions in that situation are changed

soft copy

a temporary display of output seen on a monitor


programs, or instuctions, that tell a computer exactly what to do

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