Research is revealing more about the use and users of QR codes, as the consumer engagement technology finds its way into new promotions by restaurants such as Taco Bell and Boudin Bakery. Unlike conventional bar codes, a QR code stores information vertically and horizontally, and when a smartphone camera captures its likeness, special software displays on that phone additional information or links the user to a website with data or special offers. Irvine, Calif.-based Taco Bell is currently ...
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