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Bar code marks 35 years of use

The Universal Product Code, better known as the bar code, will celebrate its 35th anniversary Wednesday. One of the world’s best-known symbols, the U.P.C. comprises a row of 59 machine-readable black and white bars and 12 human-readable digits. Both the bars and the digits convey the same information: the identity of a specific product and its… Continue Reading Bar code marks 35 years of use