QR codes have had a mixed response since their introduction in 1994. Invented by the Japanese automotive company Denso Wave, the QR code is a machine-readable optical label which can be used to share information in a easily replicated graphic.
Static and Dynamic QR Codes
The ammount of data a QR Code can store is linked to the number of modules contained within the grid, the more modules or blocks the greater the data can be stored. Occassionally you may also see