Welcome to the C program world

What is C program?

C is a high-level programming language that was first developed in the 1970s by Dennis Ritchie at Bell Labs. It is a general-purpose language that can be used to develop a wide variety of software, including operating systems, device drivers, desktop applications, and embedded systems.

 

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

 

Facts about C

•        C was invented to write an operating system called UNIX.

•        C is a successor of B language which was introduced around the early 1970s.

•        The language was formalized in 1988 by the American National Standard Institute (ANSI).

•        The UNIX OS was totally written in C.

•        Today C is the most widely used and popular System Programming Language.

•        Most of the state-of-the-art software have been implemented using C.

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 <stdio.h>   int main() {    /* my first program in C */    printf("Hello, World! \n");       return 0; }

 

Let us take a look at the various parts of the above program −

•        The first line of the program #include <stdio.h> is a preprocessor command, which tells a C compiler to include stdio.h file before going to actual compilation.

•        The next line int main() is the main function where the program execution begins.

•        The next line /*...*/ will be ignored by the compiler and it has been put to add additional comments in the program. So such lines are called comments in the program.

•        The next line printf(...) is another function available in C which causes the message "Hello, World!" to be displayed on the screen.

•        The next line return 0; terminates the main() function and returns the value 0.