Originally developed in 1991 by Finnish programmer Linus Torvalds, Linux is an exceptionally robust and reliable kernel, which combined with the GNU system is most commonly used for Internet servers, mobile phones/tablets (e.g. Android). Additionally, the use of GNU/Linux as an alternative operating system, for personal computers such as desktops or laptops, has also been growing over the years, with several million users having already discovered the benefits of it.
The GNU operating system consists of GNU packages (programs specifically released by the GNU Project) as well as free software released by third parties. The development of GNU made it possible to use a computer without software that would trample your freedom.