One of the great marketing tools, quick response code, helps in sharing information and data with people. Users can access website pages, make payments via secure gateways, and a lot more via such codes. The code image can be scanned by using mobile devices, and the details or the information can be fetched in a readable format. A QR code reader is used to scan the code. It can be downloaded and installed in the smartphone and other mobile devices; it translates the stored information into something that users can read. How Does Scanner Function? Basically, a quick response code scanner is programmed with a decoder to send the information to the mobile phone instead of a computer. The programming of the QR reader supports the illuminator as well. In this kind of technology, there is a red light that runs across the screen when the application is active. The sensor and the decoder function to decode the code. In this way, users are able to scan QR code to see the information or to ac...