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When you scan a QR code, the QR reader in your phone’s camera deciphers the code, and the resulting information triggers an action on your phone. If the QR code holds a URL, your phone will present ...
Add Yahoo as a preferred source to see more of our stories on Google. You don't need your phone to open a QR code. You probably already know how to scan a QR code with your phone. It's simple enough: ...
Among the many changes brought about by the pandemic is the widespread use of QR codes, graphical representations of digital data that can be printed and later scanned by a smartphone or other device.
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