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Smart cards are plastic credit card style cards that differ from normal "dumb" magnetic stripe cards by having a higher storage capacity and an embedded processor.

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Bank cards, credit cards, hotel key cards and some frequent traveller cards feature a magnetic stripe on the reserve side. These magnetic stripes store a small amount of data which is read using a magnetic stripe reader.

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A barcode scanner uses a laser to shine light into a barcode label. The thickness of the lines and the spacing between the lines on the barcode determine the amount of reflected light.

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Joystricks and game pads are two common input devices used by game players. More exotic input devises include steering wheels and pedals for driving games, musical instrucments and more things.

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A microphone allows sound data to be input into the computer. Microphones are often used with video-conferencing and Voice over IP software.

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Touch screens allow users to interact with computers using their hand or a specially designed pen called a stylus.

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Touch pads are common input devices on laptops, where there is usually not enough space for a mouse. Users can also use bars at the side to scroll text on screen.

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A trackball consists of a relatively large ball which is fixed in place so that the user can spin it around, controling a pointer on the screen.

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A mouse is the standard pointing device on most desktop computers.

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A soft keyboard is a keyboard that is represented by a series of buttons drawn on a monitor or screen. A soft keyboard uses a combination of hardware and software.

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On a concept keyboard each key is programmed to perform a custom function. Each key performs one compound task.

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Most computer users are familiar with the standard QWERTY keyboard that is present on virtually all laptop and desktop computers. Multimedia keyboards are standard QWERTY keyboards with additional "hotkeys" for opening common applications.

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Input devises are items of hardware that allow entry of information into the computer. Typically input devises are specialised to enter one type of information.