QR codes (Quick Response code)

A QR code (Quick Response code) is a type of matrix barcode (or two-dimensional code). 
It is designed to be read by smartphones. Once it is in cell phone, it may give details about that business or product.
The code consists of black modules arranged in a square pattern on a white background.

The information encoded may be text, a URL, or other data.

Features:

They are more useful than a standard bar code, as 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.

Generate a QR code
Generating QR via Google in three steps:
1- Click here http://goo.gl/
2 -Copy paste your information URL in there.
3- For getting QR code click on detail link.

Here you get QR code & its detail.

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