What can QR code be used for?

We can see QR codes in many places now. It's an easy way to store information and it’s a physical link between what is offline to what is online. It can be read easily with a phone which has an application capable of scanning QR code. Furthermore, it is easy to be created without much cost and it can be used in many cases. So what can it be used for?

+1 (1 person wants to ask the same question)  Posted at 2012-12-22 10:54:57 

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