Quick Response Code (QR Code) and its uses

QR code is two-dimensional code first designed for the use in automotive industry. Invented by the Toyota subsidiary Denso Wave in 1994 to track vehicles during the manufacturing process.

QR codes store more data than conventional bar code. QR codes can store URIs, geo codes of the locations, text, numbers, sms etc. They are readily readable by many modern camera phones.

QR codes are increasingly used in marketing campaigns, product information in e-commerce websites, Contact information, sign boards in historical places etc.