C Introduction

🚀 What is C Programming?

C is one of the oldest and most powerful programming languages, created by Dennis Ritchie in the early 1970s. It has stood the test of time and is still widely used today in system programming, embedded devices, operating systems, and more.

🎯 Why Learn C?

  • Speed: C is incredibly fast and efficient.
  • Portability: Code written in C can run on many different platforms.
  • Foundation: Many modern languages like C++, Java, and Python are influenced by C.
  • Low-Level Access: Allows you to interact directly with memory and hardware.

🧠 How C Works

C code is written in plain text and saved with a .c extension. It must be compiled by a C compiler (like GCC) before it can be run. The compiler turns your code into machine code that your computer can understand.

📝 Your First C Program

Let’s write a simple program that prints “Hello, World!” on the screen. This is the classic first step in any programming journey.

#include <stdio.h>

int main() {
    printf("Hello, World!\n");
    return 0;
}

Try It Now

🔍 Explanation

  • #include <stdio.h> – Tells the compiler to include the Standard Input Output library.
  • int main() – Entry point of every C program.
  • printf() – Used to print text to the screen.
  • return 0; – Ends the program and returns control to the OS.

🎉 Recap

  • C is fast, efficient, and foundational.
  • Perfect for beginners who want to understand how computers work at a low level.
  • “Hello, World!” is your first step into coding in C.