AQA Information and Communication Technology/ICT2

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How can data be captured?

manually by typing into the keyboard or capturing the data by some sort of automatic method such as OMR, OCR, Barcode reader or MICR.

Data is not just entered into the traditional computer (PC) but is used in many ways by other devices.

For example many areas use sensors to inform motorists that they are over the speed limit. These do not issue speeding ticket but act as a deterrent in order to reduce accidents. Motorways such as the M6 use an average speed limit calculation to issue tickets to motorist who slow down as they approach a speed camera but then increase their speed as they pass it. Traditional speed cameras used film to record a speeding car majority have now moved to digital meaning they can store many more images and do not need to be replaced.