They come to us from Japan where they are very common. QR is short for Quick Response (they can be read quickly by a cell phone). They are used to take a piece of information from a transitory media and put it in to your cell phone. You may soon see QR Codes in a magazine advert, on a billboard, a web page or even on someone’s t-shirt. Once it is in your cell phone, it may give you details about that business or details about the person wearing the t-shirt, show you a URL which you can click to see a trailer for a movie, or information on a product, or it may give you a coupon which you can use in a local outlet.
The reason why they are more useful than a standard barcode is that they can store much more data, including url links, geo coordinates, and text. The other key feature of QR Codes is that instead of requiring a chunky hand-held scanner to scan them, many modern cell phones can scan them.
The cell phone needs a QR code reader, it takes literally 1 minute for someone with an iPhone or Android phone to find and install the reader.
How do you generate a code?
You can easily generate a QR code using a site like Kaywa.com or you can use the Open Source code to generate codes for you if you have a smart developer on hand. Try scanning the QR code below
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