A Barcode is a 1-D code that contains just simple numbers or letters. A QR Code is a 2D square code that can contain a lot more information such as website links, payment information, contact ...

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 ...