DWine Insight

A Quick Response Code, or a QR Code as it is usually addressed, is a matrix code (or two-dimensional bar code) that allows its contents to be decoded at high speed. This is somewhat similar to the bar codes we come across in regular life. One can see these QR codes inside the packages of electronic items bought at your local store.

Wiki says "QR was initially derived for tracking parts in vehicle manufacturing. Today, QR Codes are used in a much broader context spanning both commercial tracking applications as well as convenience-oriented applications aimed at mobile phone users. QR Codes storing addresses and URLs may appear in magazines, on signs, buses, business cards or just about any object that a user might need information about. A user having a camera phone equipped with the correct reader software can scan the image of the QR Code causing the phone's browser to launch and redirect to the programmed URL. This act of linking from physical world objects is known as a hardlink or physical world hyperlinks. A user can also generate and print one's own QR Code for others to scan and use by visiting one of several free QR Code generating sites."

Types of QR codes

Micro QR Code

Micro QR Code is a smaller version of the QR Code standard for applications with less ability to handle large scans. There are different forms of Micro QR Code as well. The highest of these can hold 35 characters.

Design QR

Design QR makes it possible to incorporate eye-catchy images of logos, characters, or photos into QR code, while calculating without losing any information of the code.



There are lots of application on the web that act as QR Readers. They allow users to scan the QR codes from mobile phones and get the response instantly. One of such applications is the KAYWA Reader that is available for download for free.

Below you can see the CR code for this blog's URL which when read through a QR Reader would display: http://dwineinsight.blogspot.com/. You can generate yours here.

This video from YouTube displays how to read a CR code on your mobile screen.