·Widely used, it almost can be applied in all embedded processors with MMU. Formed the industry standard, normally it is the first supportive operating system for a new processor.
·Multitasking, completely compatible for POSIX1.0 standard
·Monolithic kernel structure; high compatibility between multitasking kernel and driving program, document system.
·Widely support different graphical interfaces and fully verified. X-windows, QT, FLTK, microWindows etc.First supportive operating system of most graphical interfaces, easy to support OpenGL
·Authorized free kernel; complete open of source code, high customization.
·Active community development, new industry standard and easier functional support
·The operating system for server, its stability of kernel has been fully verified. In 2013, Linux server occupied 32.9% of the world market; 95.2% for supercomputer.