GREENSBORO, N.C. — The checkout has changed over the years. First, cashiers manually punched in the price of an item, then the scanners made check-out much quicker, and today, there's self-check-out.

To marvel at the choice and convenience of modern shopping, go visit your grocery-store mustard aisle. My local Whole Foods sells more than 20 different kinds: basic yellow mustard and Grey Poupon, ...

The next generation of barcodes includes a heavy emphasis on QR codes and smartphone-use. Fifty years ago, on June 26, 1974, the first universal product code (UPC) was scanned at a Marsh Supermarket ...

A heated debate has erupted online over barcodes and QR codes printed on election ballots, with voters questioning whether ...

To learn more about our editorial approach, explore The Direct Message methodology. In 2010, brands rushed to plaster QR codes on everything from movie posters to running shoe packaging. Universal ...

The iconic barcode, a staple of product packaging for nearly 50 years, is set to be replaced by an advanced alternative. QR codes, recognized for their flexibility and efficiency, are poised to take ...

Next year will mark 50 years since the first product barcode was scanned. The simple system of lines, spaces, and numbers has helped track inventory and scan physical product prices. But what if it ...

If there's a shortage of anything, it's understanding of how QR codes work.

Questions have spread widely over the presence of barcodes and QR codes on Thai ballot papers, potentially reveal how individuals voted.