Introducing QR Codes
Mobile Phones are the most revolutionary device which has changed our lives in the present world. Camera phones have become the part of our daily life like our clothing accessories.
The latest Mobile technology today which we can play with much ease is QR Codes (Quick Response Code). This technology requires just one thing – a camera phone along with a QR Code Reader.
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.
Although initially used for tracking parts in vehicle manufacturing, QR Codes are now used in a much broader context spanning both commercial tracking applications as well as convenience-oriented applications aimed at mobile phone users. You can see QR Codes storing addresses and URLs which appear in magazines, on signs, buses, business cards or just about any object that a user might need information about. A user equipped with a camera phone and the correct reader software can scan the image of the QR Code causing the phone’s browser to launch and redirect to the programmed URL. This act of linking from physical world objects is known as a hardlink or physical world hyperlinks. A user can also generate and print one’s own QR Code for others to scan and use by visiting one of several free QR Code generating sites.
QR Code data capacity
Numeric only Max. 7,089 characters
Alphanumeric Max. 4,296 characters
How to Scan QR Codes
Scanning a QR code is as easy as taking pictures with the camera phone. The latest mobile phones like (Nokia N93, N93i, N95 or E90) come with a pre-installed QR code reader. Various reader software are available which can be installed on your camera phone. Point your mobile phone camera to code image and get the encoded information encoded within few seconds. The code can encode a text, a business card, Message or website URL.
QR code readers can be installed directly by pointing your mobile phone browsers or by downloading it to your computer and then transferring it to the mobile phone from the following URLs