QR codes are popular elsewhere in the world, and catching on in the U.S., but one barrier to common use is the need for a special app on a smartphone to read them. Not a problem now, as even ...

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 ...

QR codes are everywhere these days-on product packaging, restaurant menus, even tickets and invoices. They make life easier by letting you access links, download files, or make payments with just a ...