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banks card, credit cards and hotel key feature a magnetic stripe . these magnetic stripes store a small amount of data which is read using a magnetic strpe reader

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a barcode scanner uses a laser to shine light onto a barcode label . barcode are most commonly used on items in supermarkets

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smrts cards are plastic credic . smart card are used in banks and electronic cash sistem such as public transport

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joysticks and game pad are common imput dervis . there are nany diferent configuration that include a variety of buttons . the exotic imput dervis include stering , whells and pedals

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a microphone allows sounds data to be input in computer , laptops or phones to have a video conferencing

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more complex actions to be performed using several fingers

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consiste in a large ball that spin it around controling a pointer on  the screen

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allow user to interact with computer using their hand or a especially pen called stylus . are used in airports

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are common in laptops ,there is not enough space for a mouse . as well as moving the pointer by tracing their finger across

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is represented by a series of buttons drawn on a monitor or screen

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each key is programmed to perform custom function

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is the standard pointing device on most desktop computers

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most of computer have keyboard and mice

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are items of hardware that allow entry of information

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computers