C is one of the most essential and popular programming languages. It is used to program desktop applications, compilers, tools and utilities and even hardware devices. The C language is fast and efficient. It is a high-level and general-purpose programming language that is ideal for developing firmware or portable applications. The C programing language is commonly used to package operating systems such as Unix. It is a general-purpose programing language and one of the main benefits of programing in C is that it permits the computer programmer to transcribe directly to memory.