What is a QR code?
You’ve probably seen a QR code on an ad in the pages of your favorite magazine, the back of your cereal box, or maybe even the digital boarding pass for your last flight. QR, or “quick response,” codes resemble barcodes and, like a barcode, they can be quickly scanned to access information. Unlike barcodes, however, QR codes can store almost unlimited amounts of data and can be used for many different functions. The primary function of a QR code is linking to digital content. Most often QR codes are used to link to a company’s website. They can also be used to direct potential customers to join a mailing list, “like” a Facebook page or follow the company on Twitter.