Original sentence: After the postal code has been read, a bar code with the same information can be printed on the envelope.Envelopes marked with the machine readable bar code may then be processed; machine readable codes can be decoded more quickly than human readable letters and numbers.Mail sorting plays a small role in OCR research; OCR systems need only read the postal code on each envelope.Optical character recognition, usually abbreviated to OCR, involves computer systems designed to translate images of typewritten text (usually captured by a scanner) into machine-editable text--to translate pictures of characters into a standard encoding scheme representing them (usually ASCII in the case of English text).The United States Postal Service has been using OCR machines to sort mail since 1965.Whilst the accurate recognition of Latin-script typewritten text is now considered largely a solved problem, recognition of handwriting in general, and printed versions of some other scripts--particularly those with a very large number of characters--are still the subject of research.bar code and bar-code scanners
Edited sentence: After the zip code has been read, a barcode with the same information is printed on the envelope.Envelopes marked with the machine readable barcode may then be processed; machine readable codes can be decoded more quickly than human readable letters and numbers.Mail sorting plays a small role in OCR research; OCR systems need only read the zip code (postal code) on each envelope.Optical character recognition, usually abbreviated to OCR, involves computer systems designed to translate images of typewritten text (usually captured by a scanner) into machine-editable text - to translate pictures of characters into a standard encoding scheme representing them (usually ASCII in the case of English text).The United States Postal Service has been using OCR machines to pre-sort mail since 1965.Whilst the accurate recognition of European typewritten text is now considered largely a solved problem, recognition of handwriting in general, and printed versions of some other scripts--particularly those with a very large number of characters--are still the subject of research.barcode and barcode scanners