License

The paper describe the basic principles of open-sourceOpen Source - also known as a license under the GPL, this is a revolution in the world of licensing, at least so many people think, make it to light new opportunities for the development of our projects by third parties. By creating an application to this license, we provide the source code written by the applications and give us the possibility to intervene in it, BA! Nay! we give the possibility of further distribution of the software changes. Even less? Yes, because we can sell this software! In addition, this is the revolution, we can modify the applications created by someone and later even sell it, but we have always noted who was the first author and the source code changes have introduced the application. The license has very interesting assumptions and is very long since maintained since 1991 to more than 17 years, and knows that in much information technology has changed; a license remains unchanged and continues to have applications for this license, and very many such applications.