Linux is a Unix-like and mostly POSIX-compliant computer operating system (OS) which is assembled under the model of free and open-source software development and distribution. Moreover, you can get it via internet or other ways and its source code can be modified.
Linux is full free, and it is fully compatible with POSIX1.0 standard which can make you run Windows procedures via corresponding simulators. Moreover, Linux provides a X-Window system which is similar to Windows graphical interface. Linux has many different versions and they all use Linux kernel. And Linux can be installed in many kinds of computer hardware equipments, such as panel computers, routers, video or game consoles, table top computers, and table top computers. Therefore, due to the advantages of Linux, Linux is widely used.Read more »