Quick Response codes were first used in the Japanese automotive industry and became popular due to greater storage capacity compared to barcodes.
http://www.quotecandy.com/?q=qr0qr1ok QR codes are used for product tracking, item identification, time tracking, document management, and general marketing. When a QR code is read by a smartphone it can display text to the user, open a URL, save a contact to the address book or compose text messages.
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