Revolution OS is a documentary movie that tells the story of how the Linux operating system came to be. Linux is a computer operating system that was created by a group of volunteer programmers in 1991. It can be used on different kinds of computers, like desktops and servers, to do a lot of things like help people send emails, browse the internet, and run computer programs. They wanted to create a computer operating system that people could use for free and adapt to their own needs. The programmers created the operating system using a unique programming language called "open source" which means that anyone can look at the code to see how it works. Revolution OS is the story of how a group of dedicated volunteers and programmers worked together to create this amazing operating system.