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Arrow Key

One of four keys on a keyboard marked with arrows pointing up, down, left, and right.

Central Processing Unit (CPU)

The part of a computer which controls all the other parts.


A machine that can be programmed to manipulate symbols.


Data transferred from the outside world into a computer system via some kind of imput device.


To place an object between two other objects.


Any set of networks interconnected with routers.

Number Key

An input device with a small array of push buttons labeled with numbers or other symbols.


Data trasferred from a computer system to the outside world via some kind of output device.


The text in a book, newspaper, or other printed publication.


Is how someone sits at his or her computer.


Press down or hit a key on keyboard.


A speacial character that can be inserted into a text document.

Tab Key

A key on computer keyboards that inserts a tab character or moves the insertion point to the next tab stop.


A peripheral device for producing text and images on paper.


Get or find back; recover the use of.

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