scanner(also optical scanner), n.ComputingA device used to transform an analog image into a raster graphic.A device capable of reading and converting a coded pattern into alphanumeric data.
NotesA scanner1 may be used to capture pictures or text. Scanned text may be parsed using optical character recognition (OCR) software to turn it into character data. - A scanner2 designed to read bar codes generates character data rather than an image.
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