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Introduction to C Programming Language

by Anup Maurya
8 minutes read

In this tutorial, you’ll learn about What is C , Why to Learn , Facts about C , and its application.

What is C?

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 can be used to develop software like operating systems, databases, compilers, and so on. C programming is an excellent language to learn to program for beginners.

Why Learn C Programming?

C programming language is a MUST for students and working professionals to become great Software Engineers especially when they are working in Software Development Domain. Some of the key advantages of learning C Programming:

  1. C helps you to understand the internal architecture of a computer, how the computer stores and retrieves information.
  2. After learning C, it will be much easier to learn other programming languages like Java, Python, etc.
  3. Opportunity to work on open source projects. Some of the largest open-source projects such as Linux kernel, Python interpreter, SQLite database, etc. are written in C programming.

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.
  3. The language was formalized in 1988 by the American National Standard Institute (ANSI).
  4. The UNIX OS was totally written in C.
  5. Today C is the most widely used and popular System Programming Language.
  6. Most of the state-of-the-art software have been implemented using C.

About C Programming

  1. Procedural Language – Instructions in a C program are executed step by step.
  2. Portable – You can move C programs from one platform to another, and run it without any or minimal changes.
  3. Speed – C programming is faster than most programming languages like Java, Python, etc.
  4. General Purpose – C programming can be used to develop operating systems, embedded systems, databases, and so on.

Application of C Programming

C is a language that is used to program a wide variety of systems. Some of the uses of C are as follows:

  1. Major parts of Windows, Linux, and other operating systems are written in C.
  2. C is used to write driver programs for devices like Tablets, Printers, etc.
  3. C language is used to program embedded systems where programs need to run faster in limited memory.
  4. C is used to develop games, an area where latency is very important, i.e., a computer has to react quickly to user input.

Hello World using C Programming

#include <stdio.h>

int main() {
   /* my first program in C */
   printf("Hello, World! \n");
   return 0;

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