What is a QR code? A QR code (short for Quick Response code) is a two-dimensional barcode that can be read by your smartphone camera. QR codes provide quick access to product information, promotions ...
CHICOPEE, Mass. (WWLP) – Using a QR code is becoming more common as a way to access information quickly on your phone. You may have seen a Quick Response code, a group of black and white pixels ...
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