QR (quick response) code is a unique bar code which comprises of black segments organized in a rectangle design on white background. The code is used to store information such as URLs, get in touch with information, or text messages. It is able to handle many types of data such as number, binary, alphabetic, and many more. These days, you can find it almost everywhere: at the base of a journal page, on a commercial, on a CD cover and even on the...
