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Devices Of Computer

Devices of Computers
Computers perform the input, storage, processing, and output functions of the information system. In addition, computers and their devices need ways to communicate with one another. These devices are usually connected by electronic cables when located near each other. The factors that determine the reliability of an information system are the accuracy of data input, the convenience and quality of output, optimal use of storage devices, and the speed of a computer.
Accuracy of data input is important, and computers ensure that the results are correct by not making mistakes that people do. There are many types of input devices and deciding which one to use could save time and improve accuracy. Optical scanning, for example, is best used for printing questionnaires and retail tags. Optical scanning input devices include optical character recognition (OCR), which recognize certain printed characters. The OCR is an optimum way to read printed questionnaires......


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Approximate Word Count: 1396
Approximate Pages: 6 (250 words per double-spaced page)

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