Designed as a high-tech marketing resource, QR (quick response) codes have many useful applications. These (usually) black-and-white algorithmic codes are gateways to a potential multimedia nirvana.

What is a QR Code? A quick-response code (QR code) is a type of barcode that contains data for a locator, an identifier, and web tracking. QR codes have been around for a long time. They were first ...

Created in 1994 by Toyota subsidiary 'Denso Wave' to quickly track vehicles and parts through the company's automotive manufacturing process, QR codes are used more commonly today for logging into ...