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.
Stay up to date on the latest developments in Internet terminology with a free weekly newsletter from Webopedia. Join to subscribe now.
From keyword analysis to backlinks and Google search engine algorithm updates, our search engine optimization glossary lists 85 SEO terms you need... Read More »Slideshow: History of Microsoft Operating Systems
Microsoft Windows is a family of operating systems for personal computers. In this article we look at the history of Microsoft operating... Read More »Slideshow: Interesting Facts About Google Search
From Goats to Penguins, a server outage and trillions of searches, our slideshow presents interesting facts about Google and the Google.com... Read More »
Java is a high-level programming language. This guide describes the basics of Java, providing an overview of syntax, variables, data types and... Read More »Java Basics, Part 2
This second Study Guide describes the basics of Java, providing an overview of operators, modifiers and control Structures. Read More »The 7 Layers of the OSI Model
The Open System Interconnection (OSI) model defines a networking framework to implement protocols in seven layers. Use this handy guide to compare... Read More »