Everywhere you look at the South by Southwest conference this week, you see QR codes. The square “quick response” codes turn URLs, vCards, or any kind of text into a jumble of pixels that you can scan ...
Staff member Ewen Smart (left) gets his QR code scanned during a demonstration on how to do the self-test kit at a new walk-through Covid test centre at The Engine Shed, Stirling, which opens to the ...
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