Using the new barcode-scanning feature is simple. Just say “Alexa, scan this to my shopping list,” and Alexa will activate the Echo Show’s built-in camera and display an outline of a generic barcode ...

You can scan a barcode with your iPhone by using a third-party app. Currently, there are no built-in apps that can read barcodes. Your iPhone can automatically scan QR codes using the built-in camera ...

QR or Quick Response codes are one of the most popular ways to access information on the go. Invented in 1994 and once considered the wave of the future, part of the QR code revival that started in ...