QR codes are a type of barcode, or scannable pattern, that contain various forms of data, like website links, account information, phone numbers, or even coupons. QR codes are found everywhere ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

and most QR tags contain the URL of a Web page that promotes merchandise or a service. See QR code. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission.

NORFOLK, Va. - Quick Response (QR) codes are everywhere these days because they're an easy, contactless way to read a menu or download an app. While square barcodes can be convenient, they can ...