Universal Product Code apps for the iPhone let shoppers find additional information and perform price comparisons on products while inside a store. They also let allow an iPhone to serve as a ...

Despite the multitude of barcodes in existence today, universal product codes remain among the most useful to a small business. Because UPC barcodes can only be as accurate as the information in a ...

It survived all of that to mark its 30th year this month. Happy birthday to the Universal Product Code. The UPC, the most common version of the so-called bar code, wasn't as warmly embraced or as ...