Short for quick response code, a QR code is a type of two-dimensional (2D) barcode that can be read using a QR barcode reader or camera-enabled smartphone with QR reader software. A QR code is able to carry information in both the vertical and the horizontal direction, which is why it is called a 2D barcode. The QR Code is a registered trademark of Denso Wave Inc. in Japan and other countries.
QR Codes are popular with mobile phone users as the barcode can be used to store addresses and URLs. With a camera-enabled smartphone, users can scan the QR Code which has been coded to do things like display text, provide contact data or even open a webpage in the browser on the smartphone. The QR Code specification outlines data types, or services for this information. By using the standards it ensures QR Code software can correctly read the barcode. Some examples include:
QR Codes can be printed and displayed anywhere a mobile phone user might scan the code such as in a magazine or displayed at a cash register. They can also be displayed online.
There are a number of online services that will generate a QR Code based on the information you specify when mapping the QR code.
It's not just your lawnmower and household tools that your neighbor won't return. Our top picks include everything from updating device firmware... Read More »Interesting Times: Transformation in the IT Channel
Business transformation will remain the buzzword of the moment as channel firms continue to assess the direction of their companies in the age of... Read More »What is a Virtual Private network (VPN)?
Companies and organizations will use a VPN to communicate confidentially over a public network and to send voice, video or data. Read More »
From wacky alarm clocks to lecture hall tools and after class entertainment, these Android apps are a good fit for a student's life and budget. Read More »Network Fundamentals Study Guide
A network is a group of two or more computer systems or devices, linked together to share resources, exchange files and electronic communications.... Read More »Computer Architecture Study Guide
This Webopedia study guide describes the different parts of a computer system and their relations. Read More »
Stay up to date on the latest developments in Internet terminology with a free weekly newsletter from Webopedia. Join to subscribe now.
- Watch Datamation's editor James Maguire moderate roundtable discussions with tech experts from companies such as Accenture, Dell, Blue Jeans Network, Microsoft and more »