Secret behind 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? A QR code (abbreviated from "Quick Response code" (because they can be read quickly by a cell phones) … [Read more...]