Scan: A Neat Way to Solve the Mysteries of QR Codes

As you are out and about, walking around the world, if you ever bother to look up from the screen on your iPhone, you've probably seen a QR code -- a black and white square with three ringed black squares in the corners and a bunch of seemingly random white and black pixels scattered all over it.

Source: http://www.technewsworld.com/rsstory/73256.html

RACKABLE SYSTEMS PEROT SYSTEMS PALM RF MICRO DEVICES