What Is A "QR Code"?

QR Codes (Quick Response Codes) are popping up all over the place, and have moved out from the manufacturing arena to everyday commercial use. They are simply a type of bar code, although they can represent more data than the older bar codes consisting of vertical lines. In QR codes the data is represented both vertically and horizontally, and can be readily scanned and read by all the major mobile devices, either natively or through third-party software. It's a great advertising device and is showing up all over the place - product packaging, magazines, business cards and on and on.

The same web address in a QR Code .

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