C is the most popular compiled language. A compiler translates source code written in a high-level language into machine language. Thus the resulting output is an executable machine code. Most modern compilers are relatively efficient such as: Turbo C++, CodeBlocks, Dev-C++, NetBeans, Eclipse etc.
Compiler performs a very important job in programming, it translates, it converts code written in high-level language into machine language, like it translates code written in C programming language into machine language. Which the processor can understand and execute the actions written in the program.