Let us start at the beginning...

A QR (Quick Response) Code is a mobile phone readable bar-code. It was the creation of Toyota Subsidiary Denso Wave, in 1994, to track vehicles during the manufacturing process. Used frequently in Japan, the United Kingdom is actually the 7th largest consumer in the world. Denso Wave owns the patents rights but has chosen not to exercise them and QR codes are free from any licensing fee. QR Code is clearly defined & published as an ISO Standard.

A QR Code simply compresses a whole lot of data into an image that truthfully looks like static. Using a mobile phone: If the device has had QR Code decoding software installed on it, it will fire up the browser and go straight to that URL. Some QR Code readers require you to take a photo of the QR Code. You can search your smart phone App Store for a QR Code reader. Use bar code scanner or QR code reader if you are battling.