While reading his favorite outdoor sports magazine, Jeff sees an advertisement for a new camping tent that is designed for quick setup. At the bottom of the page is a black-and-white square. Using an app on his phone, Jeff scans the square and a video displays on his phone's screen showing how easy the tent is to set up. The item that Jeff scanned on his phone is called a(n).

QR code

Explanation:

QR code stands for Quick Response code.It is also known as Barcode and was first designed in 1994. It is made up of black squares lined up in a square grid usually on a white background and are read by a camera etc.

QR codes often contain data for a locator, identifier, or tracker that directs one to a website or application and it uses four encoding modes namely:numeric, alphanumeric, byte/binary, and kanji to store data competently.

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