QR codes are ubiquitous and incredibly useful for quickly sharing small amounts of information. Although QR (short for Quick Response) codes were originally invented at a Toyota subsidiary company in ...

QR codes–square, dot-matrix variants of the venerable UPC–are becoming an increasingly popular way to share information such as URLs, contact details, GPS coordinates, and calendar events. The idea is ...

Two-dimensional (2D) barcodes, more prominently recognized as QR codes, are back in fashion—with much demand for just about 'contactless' everything these days. Coinbase didn't waste time in seizing ...

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