The UNIX operating system, the C compiler, and essentially all UNIX application programs have been written in C. C has now become a widely used professional language for various reasons
- Easy to learn
- Structured language
- C was invented to write an operating system called UNIX.
- Most of the state-of-the-art software have been implemented using C.
- Today C is the most widely used and popular System Programming Language.
C was initially used for system development work, particularly the programs that make-up the operating system. C was adopted as a system development language because it produces code that runs nearly as fast as the code written in assembly language. Some examples of the use of C might be.