Optical Character Recognition (OCR) scans the papered documents and converts them into electronic file which can be edited. One can convert the data in any file format.
Traditional OCR- Traditional OCR used to work similar to biometric device. Photo sensor technology was used to gather the match points of physical attributes and then convert it into database of known types.
Modern OCR- Modern OCR have sophisticated algorithm’s and artificial intelligence ability. They can not distinguish the pattern matching but also the grammatical and theoretical assumptions whenever needed.