Is it a printing error? A pixilated maze? One of those puzzles where you have to cross your eyes to see the hidden image? Two-dimensional matrix bar codes are expanding into the mainstream. You can ...

QR code, short for Quick Response Code, is a kind of matrix barcode that includes information about a product or service. You can find it being used for advertising purposes, where brands put up ...

QR codes, those little black-and-white puzzle-like square matrixes that increasingly populate ads and promotional posters, are meant to provide smartphone users with product details. But trusting ...

(Nanowerk Spotlight) Quick Response Codes, or QR codes for short, are two-dimensional matrix codes that can hold 100 times more data than a traditional barcode. QR codes have rapidly gained popularity ...

A QR code (short for "quick-response code") is a type of two-dimensional matrix barcode that can be read by the camera on a smartphone. They store information that can direct the user to a URL, ...