2 Input and output devices

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2.1 Input devices and their uses

Input devices - devices used to input instructions and data into the computer for processing.

All computers come with a keyboard, which can be separate or on-screen found on tablets and smartphones.

Most computers use a GUI, which uses a pointing device such as a mouse or touch pad as an input device to make selections.

Sometimes a tracker-ball can be used with a GUI.

Other input devices used with desktop and laptop computers, tablets and smartphones include remote controls, joysticks, touch screens, scanners, digital cameras, microphones, graphic tablets, video cameras, and web cams.