QR codes — or "Quick Response" codes — are square-shaped barcodes that can be scanned by mobile devices. They are used for a variety of applications, from pulling up a restaurant menu to directing ...

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This story originally featured on Popular Science. Quick Response or QR codes were popular even before the coronavirus pandemic, but now they’re everywhere: from restaurant menus and tickets, to ...

Ever since I installed a barcode-scanning app on my phone, I see QR codes everywhere—so naturally I wanted one of my own. If you're a barcode-scanning fool, the QR code to the left links to my ...

Posts from this topic will be added to your daily email digest and your homepage feed. If you want to make it simple for someone to find a webpage, a QR code can help. If you want to make it simple ...