QR Refresher

Excerpt from Desktoppub.About.Com:

Similar to a UPC barcode, the QR Code or Quick Response Code is a type of two-dimensional (2D) code that can store a wide range of information. Originally developed by an automotive company for tracking parts during manufacturing, the QR Code is now seen on everything from business cards to magazine ads to t-shirts to product labels to coffee mugs. Encoded in these (usually) black and white patterns are thousands of alphanumeric characters of information which can include addresses, phone numbers, marketing messages, and URLs…

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