1. Linux - computer operating system
Linux is one of the most common computer operating system, which is now used in mobilephones, computers, servers, game consoles and supercomputeres
Principal author of Linux-kernel was Linus Torvalds (kernel is kind of the heart of the system)
Linux was founded, when the kernel was released 1991
Based on Unix operating system from 1970´s
Linux is known from free and open source codes, now hundreds of versions on the market, the most common are Android, Ubuntu, Chrome OS
New Linux version is normally released by distribution packages, which are based on groups of specified softwares and libraries
Linux is the most used system for computer servers. 10 world’s fastest supercomputers are using Linux.

2. Simplified structure for new version of Linux distribution