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Input Devices

Title: Input Devices
Category: Science & Technology
Details: Words: 3237 | Pages: 13.8 (approximately 235 words/page)

Input Devices

Input Devices An information system cannot do anything until you give it some information to process. Input devices transfer data into a computerised information system so that it can be processed. Remember that the computer does not process information it processes data. An input device transfers data from the outside world into a computer. There are two different categories of input device. They are: · Manual Input Devices: With a manual input device the user must …showed first 75 words of 3237 total…

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…showed last 75 words of 3237 total…contain any instructions because the meter reader who fills it in will complete hundreds of similar forms every day. He will have been trained to use the forms so printing instructions on them would simply waste space. Sensors Sensors can be used to measure physical quantities such as temperature, light and pressure. The measurements can then be stored for later use (data logging) or used to control devices such as heaters or fans (computer control).

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