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QR codes are popping up more and more often these days. The square pixel graphics are essentially barcodes for smart devices, programmed to show a particular response when scanned. They’re often used in advertising to direct viewers to a website, and can even be used to quickly join a Wi-Fi network.

Scanning a QR code is incredibly easy. All you have to do is open the Camera app, point your camera at a QR code, and then tap on the notification that pops up on the screen. Your device will automatically launch whatever it is the QR code is directing you to.

Oh, and in case you were wondering – QR stands for Quick Response!