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QR Code (Quick Response Code)
'QR' means Quick Response plus Code. Smartphones can read this two-dimensional barcode. More than 4000 characters can be encoded in a two-dimensional barcode. Most often, it is used to create links or text. Here's a picture of a QR code for your convenience. If you want to scan a QR code, you'll need the Scanner App. As you can see, there are several alternatives accessible on the Play Store and the Apple store.
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