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Input Devices. Input devices are used to put data into a computer system. You can use some input devices such as keyboards or touch screen to enter data by hand. Other input devices such as bar-code readers allow automated data entry to take place. In this coursework I will look at two input devices write about their strengths and limitations, at the end of my research I will conclude which device I think is of more use, important and unique. The input devices I am researching are a keyboard and scanner. Keyboard Keyboards like the one in the picture above are very widely used to put data into a computer system. Most keyboards that we use today have 102 keys, 26 of them key are alphabetical the rest are for computer functions, for example caps lock and delete keys. Some of the keys are used to create shortcuts, some of the shortcuts...

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