What is a QR code? A guide to the barcode's basics, why you're seeing it everywhere, and how to scan one
businessinsider.com
What is a QR code? A guide to the barcode's basics, why you're seeing it everywhere, and how to scan one
QR codes are a type of barcode, or scannable pattern, that contain various forms of data, like website links, account information, and phone numbers.
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