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Quick Response Codes aka “QR Codes” and 2D Codes, were created in 1994 by Denso-Wave (http://www.denso-wave.com) in Japan to store more information than what can be stored in classic barcodes. QR codes can store URLs, phone numbers, addresses, text messages, etc. Uses are almost unlimited. They gained world-wide popularity recently when smartphones equipped with cameras allowed users to use barcode reading applications to retrieve text stored in the 2D codes. Many products are now being advertised with QR Codes to allow users to capture details on-the-go through smartphones. (Source: http://www.denso-wave.com/qrcode/aboutqr-e.html)

qr-vs-barcode.gif
Source: http://www.denso-wave.com/qrcode/aboutqr-e.html

The amount of data that can be stored in barcodes and QR Codes are detailed in this table:


barcode-storage-capacity.gif
Source: http://www.denso-wave.com/qrcode/aboutqr-e.html

How to read QR Codes:

1- Download a QR Code Reader application on your Smartphone

2- Start the application

3- Point the camera at the QR code

4- The application will recognize the stored text

5- URLs can be clicked and users can be directed to the target webpage

6- The captured text can be saved or sent to other users

Recommended Applications for various platforms:

1- Apple iOS: NeoReader http://itunes.apple.com/gb/app/neoreader/id284973754?mt=8]

2- Android: Barcode Scanner App from Market

3- BlackBerry: Choose scan a barcode from your App World application

The following sites allow you to create QR Codes and save them as images:

1- Kaywa QR-Code Generator http://qrcode.kaywa.com

2- Create QR Code http://createqrcode.appspot.com

3- Curify http://www.qurify.com


Five unique used of QR-codes
5 unique uses for QR-codes......



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