2D Codes
One of the most interesting topics with regards to mobile technologies is how they can bridge the virtual and physical worlds. One of the ways to do this are by using 2D codes. Most people are familiar with Universal Product Codes (UPC), also known as bar codes. These are used to track and identify products and other items.

Another type of code that is popular in Japan are Quick Response bar codes which are also called "QR codes." These are flexible in the types of information they can hold. URLs, contact information, email addresses, geo locations, phone numbers, SMS, and text can all be stored and accessed from these codes.



If you can read this QR code, then you are all set! If you can't, then read below.
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So how do you read QR Codes?

These codes are similar to bar codes. A device scans the code and reads it. First you need to a have phone that is capable of running scan software. Here is a page that shows makes and models of phones that have readers available.

Once you have downloaded and installed the software, read the instructions and practice using it. Some softwares are easier to use than others. Also, if you can, try several softwares as some work better than others.

So far on my iPhone, the app that seems to work the best is QuickMark. If you have an iPhone you can just get it from the app store. It is $.99 but is very good. There are some free readers you can also try them without cost.