Secret behind QR code

Contact Information in QR Code

You have probably seen the picture in the left at many places like, automobiles, electronic gadgets, magazine advert, on a billboard, a web page or even on someone’s t-shirt. But do you have any idea what does this code do. Many of us do not know the real thing behind this image. This images is called QR Code.

So what is QR code?

QR code (abbreviated from "Quick Response code" (because they can be read quickly by a cell phones) is a type of matrix-barcode (or two-dimensional code) first designed for the automotive industry. More recently, the system has become popular outside of the industry due to its fast readability and comparatively storage capacity. The code consists of black modules arranged in a square pattern on a white background. The information encoded can be made up of four standardized kinds ("modes") of data (numeric, alphanumeric, byte/binary, Kanji [complex Chinese script]), or by supported extensions virtually any kind of data. First coined by Toyota Motors subsidiary Denso Wave in 1994 to track vehicles during the manufacturing process, the QR code is one of the most popular types of two-dimensional barcodes. It was designed to allow its contents to be decoded at high speed. Once it is scanned by your cell phone, it gives you details about that business, or details about the person wearing that t-shirt, show you a URL which you can click to see a trailer for a movie, or it may give you a coupon which you can use in a local outlet.

What are the benefits of QR code?

QR codes are more useful than a standard bar-code because they can store (and digitally present) much more data, including Contact Information, Email address, phone numbers, Geo location, SMS, text, URL, WiFi Networks. The other most important feature of QR Codes is that you don't need any special hand-held device to scan them. Due to the modern technology, it is possible to scan those codes by your smart phone. All you need is a Smartphone with camera and QR code reader (you can download QR Droid from Android Market) installed in it. We can also assign password to secure our data in QR code.

Where can I generate QR Code?

Many online and offline application are available for free to generate QR code. The most used websites to generate QR codes are and where you can generate QR code of Contact Information, Email address, phone numbers, Geo location, SMS, text, URL, WiFi Networks. Give a try now.  

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About Raja Ram Paneru




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