| QR Codes contain information in both the vertical and horizontal directions and contain considerably more information than one-dimensional bar codes.
QR Codes can be used to display text to the user, to connect a user’s device to vCard contact information, to open a URL, and even dial the user’s phone to deliver a pre-recorded message. And much like the initial, open-source philosophy behind the World Wide Web, users can generate and print their own QR Codes for others to scan and use by simply visiting one of the multitude of free QR Code generating sites online. A good source for these can be found at the blog, 2d code; Qr Code and Two Dimensional Bar Codes, News, Views and Analysis at: www.2d-code.co.uk/qr-code-generators. |