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 ...

QR coding has brought barcode-type application into the reach of anyone equipped with a PC and a cellphone with a camera, explains Nizar Diamond Ali Most of us are familiar with 'barcode' as a result ...

Many of you reading this have undoubtedly seen a QR (Quick Response) code by now (the thing pictured to the right), but there's just as much -- if not more -- confusion surrounding them today as there ...