What is a QR Code?
You can learn many things about QR Code, its features , standards, etc., here.
How to introduce it?
You can look up how to create a QR Code, scanners for it etc. here when you want to use it.
History of QR Code / This is how QR Code was developed.
Many ways of using the QR Code
QR Code, iQR Code SQRC and FrameQR are registered trademarks of DENSO WAVE INCORPORATED in Japan and in other countries.