Well we normally ignore these funny looking black and white codes printed on things we buy - either along the simple bar codes ore alongside these. Many of us just ignore these as we find these something printed in Martian.
But ever wondered how useful these QR codes can be? Well China has taken a lead and today more and more Chinese are adopting QR codes from buying grocery to buying train tickets or paying the hotel bills.
What are these QR Codes anyway? Well QR code (abbreviated from Quick Response Code) is the trademark for a type of matrix barcode (or two-dimensional barcode) first designed for the automotive industry in Japan. A barcode is a machine-readable optical label that contains information about the item to which it is attached. A QR code uses four standardized encoding modes (numeric, alphanumeric, byte/binary, and kanji) to efficiently store data; extensions may also be used. (As explained by Wikipedia)
Watch the video below and see how the QR Codes has become ubiquitous and a way of life in China:
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