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C programming is a general-purpose, procedural, imperative computer programming language developed in 1972 by Dennis M. Ritchie at the Bell Telephone Laboratories to develop the UNIX operating system. C is the most widely used computer language. It keeps fluctuating at number one scale of popularity along with Java programming language, which is also equally popular and most widely used among modern software programmers.

1) Why to Learn C Programming? C programming language is a MUST for students and working professionals to become a great Software Engineer specially when they are working in Software Development Domain. I will list down some of the key advantages of learning C Programming: Easy to learn , Structured language , It produces efficient programs , It can handle low-level activities , It can be compiled on a variety of computer platforms

2) Facts about C 1.C was invented to write an operating system called UNIX.
2.C is a successor of B language which was introduced around the early 1970s.C language is considered as the mother language of all the modern programming languages because most of the compilers, JVMs, Kernels, etc. are written in C language, and most of the programming languages follow C syntax, for example, C++, Java, C#, etc. It provides the core concepts like the array, strings, functions, file handling, etc. that are being used in many languages like C++, Java, C#, etc.
3. C as a mid-level programming language C is considered as a middle-level language because it supports the feature of both low-level and high-level languages. C language program is converted into assembly code, it supports pointer arithmetic (low-level), but it is machine independent (a feature of high-level). A Low-level language is specific to one machine, i.e., machine dependent. It is machine dependent, fast to run. But it is not easy to understand. A High-Level language is not specific to one machine, i.e., machine independent. It is easy to understand. The language was formalized in 1988 by the American National Standard Institute (ANSI).
4.C as a procedural language A procedure is known as a function, method, routine, subroutine, etc. A procedural language specifies a series of steps for the program to solve the problem. A procedural language breaks the program into functions, data structures, etc. C is a procedural language. In C, variables and function prototypes must be declared before being used. .
5.Today C is the most widely used and popular System Programming Language. A system programming language is used to create system software. C language is a system programming language because it can be used to do low-level programming (for example driver and kernel). It is generally used to create hardware devices, OS, drivers, kernels, etc. For example, Linux kernel is written in C. It can't be used for internet programming like Java, .Net, PHP, etc.
6.C as a structured programming language A structured programming language is a subset of the procedural language. Structure means to break a program into parts or blocks so that it may be easy to understand. In the C language, we break the program into parts using functions. It makes the program easier to understand and modify.

3) Hello World using C Programming.
Just to give you a little excitement about C programming, I'm going to give you a small conventional C Programming Hello World program.
#include
int main() {
/* my first program in C */
printf("Hello, World! \n");
return 0;
}

4) Applications of C Programming 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 are - Operating Systems , Language Compilers , Assemblers , Text Editors , Print Spoolers , Network Drivers , Modern Programs , Databases , Language Interpreters , Utilities ,