What is a QR Code? A quick-response code (QR code) is a type of barcode that contains data for a locator, an identifier, and web tracking. QR codes have been around for a long time. They were first ...
How-To Geek on MSN
No, we're not running out of QR codes
If there's a shortage of anything, it's understanding of how QR codes work.
Quick response (QR) codes just seemed to appear one day in the late 2000s. Now they’re everywhere: plastered on advertising, social media, even Coke bottles, all begging for your attention. But QR ...
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