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Here's what a VPN can't protect you from (but you need to use it)

The abbreviation " VPN " has slowly become established among average Internet users, which is certainly good, but the problem is that people have started to see VPN as the ultimate solution to all problems.

QR Code - How to encode and decode it

QR Code - How to encode and decode it

In short, what is a QR code?

"Qr-code" is a matrix code (or two-dimensional  Bar code) created in 1994. It was created by the Japanese corporation  Denso-Wave. "QR" is an acronym for Quick Response, as the creator intended to decode the content extremely quickly. QR codes are common in Japan, where two-dimensional codes are currently the most popular. (Source: Wikipedia

So, the main feature of this Code is that it decodes extremely fast. Also, another advantage is that you do not have to have a special reader, but you only need a mobile phone with the application installed.

To make one QR Code you need any site that deals with it. For example, I will take  esponce.com where you can generate a code that will contain a message, SMS, contact, a simple link, email address, phone number, etc.

When you have entered the desired data, click "Generate code"

I put a link in this code. The more letters you put in the Code, the bigger and more complex it will be.

Now, how do you decode it?

You must first download and install the application on your phone. The application is available for both iPhone and Android, as well as for older models that use Java.

Download QR reader : Java (.jar) , Android (.apk) , iPhone

If you have installed the application, run it and take a picture of the QR code I set above. A link will appear on the screen of the phone I inserted the Code.

It should be noted that QR readers do NOT use an internet connection, everything is done by the application itself.

You can put anything in the QR Code and have fun with your friends. Of course, you can also use it for something more useful.

One good example of how a QR Code can be used can be seen in the clip below.


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