Product bar codes were originally developed to help with inventory tracking and speed up checkout at grocery stores. The relative speed and ease of use of the bar code system, or Universal Product ...

QR codes–square, dot-matrix variants of the venerable UPC–are becoming an increasingly popular way to share information such as URLs, contact details, GPS coordinates, and calendar events. The idea is ...

You’ve no doubt removed countless stickers from fruits and vegetables over the decades. Have you ever stopped to wonder what the numbers mean? Perhaps you thought the numbers on fruit stickers were ...