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 front ...

The universal product code, or UPC, is a bar code that typically has 12 digits and is usually found on the back or bottom of perishable and non-perishable products. To claim a refund for a defective ...

The first modern barcode was scanned 50 years ago this summer—on a 10-pack of chewing gum in a grocery store in Troy, Ohio. Fifty is ancient for most technologies, but barcodes are still going strong.

Forty years ago today, a cashier at a Marsh Supermarket in Troy, Ohio, scanned a 10-pack of Wrigley's Juicy Fruit gum bearing an odd-looking set of alternating black and white lines. The barcode had ...