Software built into the cameras on iPhones and Android phones make quick work of decoding QR codes. How do you do that on a laptop or desktop computer?
In July, Google introduced a redesign of the Android QR code scanner, but rolled it back. The updated interface is now starting to reappear.
Opinion
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Opinion: Are QR codes computer-friendly?

I have a friend who calls me occasionally to come help him with various little things having to do with the technology at his house. This week, one of his requests was to learn more about QR codes and ...
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