What is a QR code? A QR code (short for Quick Response code) is a two-dimensional barcode that can be read by your smartphone camera. QR codes provide quick access to product information, promotions ...

Your smartphone is full of surprises. There’s an app if you want to use your phone as a magnifying glass or scanner. Tap or click here for hidden apps on your smartphone and how to find them.

Your smartphone is full of surprises. There's an app if you want to use your phone as a magnifying glass or scanner. Tap or click here for hidden apps on your smartphone and how to find them.

QR codes, which are those small black and white squares you see on so many products, items and advertisements, give you more information about the item the code appears on. If you're checking out a ...

QR codes may be turning up in more places than ever these days, but are people actually using them? According to market research firm Comscore, at least some of them are -- 14 million in June in the ...

Take any smartphone, such as an iPhone, Android, etc., open its barcode scanner application, scan one of the strange-looking squares that look like a cross between alien hieroglyphics and a ...