The QR (Quick Response) code is a two-dimensional bar code that can store contact info, URLs, even paragraphs of text. Although they were invented clear back in 1994, they were relegated to industrial applications until a new generation of consumer electronics made them practical for just about everything.
Now that phones like the Android and iPhone have easy to use software for decoding them, QR codes are spawning a new generation of applications called “hardlinking” or “physical world hyperlinking” that make it easy for consumers to capture data from products, magazines, billboards and even each other’s phones.
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