TEMPO.CO, Jakarta - Knowing how to check your Nike shoes' "Universal Product Code" or UPC to find out if they were genuine or imitation is useful for verifying the authenticity of the product. Nike is ...

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.