QR Codes are frequently used everywhere such as museums, test books, markets, stores and so many places in these days. For example, while visiting a museum, people do not have listen to guides or take notes about what the guide says. Person who has the app called QR Code Reader, can scan the QR Code below a picture that is in the museum. So, they read or listen it.
People do not need to have the QR Code. If they want, they can create a QR Code in a website. It is so easy that it takes less than 5 minutes to create one.
Let's take a look at the picture above. Scan it with the QR Code Reader app and you will find some information about QR Codes which I made in http://www.qrstuff.com/.
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