A universal product code consists of a unique set of numbers that identify a product. GSI, the only authorized dealer of UPCs in the United States, indicates that a UPC can be programmed with data -- ...

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 ...

Some technologies you use every day, but without thinking about them. The bar code is one of these: everything you buy has one of these black and white striped codes on it. We've all seen how they are ...