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A QR code (short for Quick Response) is a specific matrix barcode (or two-dimensional code), readable by dedicated QR barcode readers and camera phones. The code consists of black modules arranged in a square pattern on a white background. The information encoded can be text, URL or other data. QR code is pretty efficient in spreading messages to smartphone devices. You can use your iphone, ipad, android phone or other smartphones to scan the code anywhere, then you would be …
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