LinuxWikipeda Link:
http://en.wikipedia.org/wiki/LinuxLinux is a Unix-like computer operating system assembled under the model of free and open source software development and distribution.
Linux runs on a wide variety of computer hardware, including mobile phones, tablet computers, network routers, televisions , video game consoles, desktop computers, mainframes and supercomputers.
Linux is a leading server operating system, and runs the 10 fastest supercomputers in the world. In addition, more than 90% of today's supercomputers run some variant of Linux.
Simplified history of Unix-like operating systems. Linux shares similar architecture and concepts (as part of the POSIX standard) but does not share non-free source code with the original Unix or MINIX.