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.

Position markers, also known as finder patterns, are the large squares located at three corners of the QR Code. These markers help scanners detect the QR Code and determine its orientation. They are ...

You’ve almost certainly used QR codes before—it’s when you point your phone’s camera at a square barcode to access a menu, a form, or even an app, and then tap on the link that appears. But while most ...

They are everywhere! Those little black and white boxes with dots and squares: QR codes (Quick Response Codes). They show up in the mail, in email messages, in print, and on bulletin boards. Companies ...

Q. I work in a training facility where our IT department insists on using difficult passwords to protect our Wi-Fi routers, and as a result, our many guests frequently have difficulty connecting. Any ...

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