And indeed, tapping it brought up a QR code scanning screen. It turns out that QR code and barcode scanning are new to version 56 of Chrome for iOS, which Google updated on 1 February 2017. For those ...

Morse code expressed visually. 1952. On October 7, Woodland and Silver receive U.S. Patent 2,612,994. ... 1995-2000 Barcode scanners become affordable for mom and pop stores and public libraries.

Quick Response codes or QR codes are a type of barcodes that comprise a matrix of dots. ... To scan a QR code, simply tap the QR code icon that shows up when you tap the address bar.

Barcodes were first used in shops in the US in 1974 and arrived in the UK five years later but now they are set to be replaced by a new type of QR code ...