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.

During Apple’s keynote at this year’s WWDC 2017, Craig Federighi announced iOS 11 support for the oft-forgotten quick response (QR) codes. While users stateside may not use QR codes regularly, for ...

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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On the front, Brian Punger’s business card looks like any other. But on the back is a large quick response or QR code that says “Scan me.” People who do just that will upload his contact information ...

Now that Google is using the two-dimensional bar codes as part of its local businesses listings program, it's all the more reason for an app to help read them. CNET contributor Don Reisinger is a ...