QR Code

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From the Wikipedia:

"A QR Code is a matrix code (or two-dimensional bar code) created by Japanese corporation Denso-Wave in 1994. The "QR" is derived from "Quick Response", as the creator intended the code to allow its contents to be decoded at high speed. QR Codes are common in Japan where they are currently the most popular type of two dimensional code." (http://en.wikipedia.org/wiki/QR_Code)


"The QR Code is a the next-generation RFID bar code. Says Rob Walker in his NY Times Consumed column,

The traditional bar code is most familiar as the Universal Product Code on practically every packaged good we buy. The series of stripes corresponds to a numeric code containing data like an item’s weight and manufacturer. The new generation of code [QR Code; QR="quick response"] can handle more information because it is arranged in a dot-matrix style that communicates with a scanner both horizontally and vertically — as opposed to the one-dimensional, linear manner of regular bar codes. (http://www.nytimes.com/2008/03/30/magazine/30wwln-consumed-t.html?)

Because anyone can generate a QR code for pretty much any data that fits, and because many mobile phones can have readers that interpret the codes, they're sure to pop up anywhere and everywhere, not just as product inventory codes." (http://weblogsky.com/2008/03/fashionable_code.html)