What is scanner
SCANNER
lt is an input device that optically scans text, images and objects. The scanned data is then converted into a digital image and is displayed on the computer monitor. The . most popular scanner is the desktop scanner, also called the Flatbed scanner, which has a glass window where the document/object is placed for scanning.
Another popular category of scanner is the hand held scanner used in libraries, shopping malls etc.
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dont use unformal language