Origin of C Programming Language
History and Development
The C programming language was created by Dennis Ritchie at Bell Laboratories between 1972 and 1973. It was developed as a successor to the B programming language and was originally designed for the Unix operating system.
- Founder : Dennis Ritchie (September 9, 1941 – October 12, 2011)
- Year : 1972-1973
- Place : Bell Laboratories, USA
- Purpose : Initially developed for Unix system development

Advantages of C
- Middle-level language with low-level capabilities
- Fast and efficient execution
- Portable across different platforms
- Rich set of built-in operators
- Extensive library support
- Foundation for many other languages
Disadvantages of C
- No runtime checking
- Lack of object-oriented features
- No direct support for multithreading
- Manual memory management
- No string handling built-in
C Programming Learning Roadmap
- Basics
- Syntax and Structure
- Variables and Data Types
- Operators and Expressions
- Input/Output Operations
- Control Flow
- Conditional Statements (if, switch)
- Loops (for, while, do-while)
- Break and Continue
- Functions
- Function Declaration and Definition
- Parameter Passing
- Recursion
- Arrays and Strings
- 1D and 2D Arrays
- String Manipulation
- Character Arrays
- Advanced Concepts
- Pointers
- Dynamic Memory Allocation
- Structures and Unions
- File Handling
Key Concepts in C
- Memory Management : Understanding stack vs heap, malloc, free
- Pointer Arithmetic : Address manipulation and memory access
- Preprocessor Directives : #include, #define, macros
- Storage Classes : auto, static, extern, register
- Bit Manipulation : Bitwise operators and operations
- Standard Library : stdio.h, stdlib.h, string.h, math.h
First C Program - Hello World
The "Hello, World!" program is a simple C program that displays the message "Hello, World!" on the screen. It's often used as a starting point for learning a new programming language. Here's the code:
#include <stdio.h> int main() { printf("Hello, World!\n"); return 0; }