Input device: a device that can be used to insert data into a computer or other computational device.
Keyboard: a keyboard is usually connected to a computer via usb lead. Although a laptop has a built in keyboard. Also the internet tablets which are very popular lately have a touch screen keyboard. a keyboard allows you to type numbers and letters as information into a document or a browser. Without a keyboard connected up to your computer you wouldn't really be able to do much.
Mouse: a mouse is connected up to the computer via usb lead. A laptop has a touchpad but you are able to connect a mouse to it also. Without a mouse connected up to your computer you wouldn’t be able to do anything.
Webcam: a webcam is connected up to your computer via usb. A webcam allows you to communicate with others anywhere in the world.
Scanner: a scanner is connected up to a computer via usb lead. It is used for transferring pictures and documents to your computer.
Graphics tablet: a graphics tablet is connected to your computer via usb lead. This allows a graphic designer to draw an image free handed straight on to the computer.
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