For the longest time we’ve been using UPC bar codes to store strings of information in a compact space on both product labels and people in dystopian sci-fi movies. But as our needs grew and became ...

Clemson University provides funding as a member of The Conversation US. Few objects in the world are more immediately recognizable than the bar code. After all, bar codes are all around us. They’re on ...

On June 26, 1974, Sharon Buchanan, a supermarket cashier in Troy, Ohio, made retailing history when she became the first person to ring up a sale by scanning Universal Product Codes, rather than ...