The origin of the word "QR" comes from English and is an abbreviation of the words: "Quick Response", which can be translated as a fast response. In the following, you will learn that it is exactly that.
QR code sample can be seen on the left. So you could read the code, so it needs QR reader, which is the Internet to download large amounts. Most of them are free. The second thing you need is a mobile phone with a camera and an internet connection. If you connect to the Internet via the phone in places with wifi coverage such as cafes, libraries, restaurants and pay nothing to the mobile operator, so you reader lets you scan QR codes, and then once you have a connection, so you can look at the content. It's simple really, read on.
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