🖥️ Operating System Concepts Implementation

This repository contains practical implementations of fundamental Operating System concepts and mechanisms. Each implementation is thoroughly documented and includes example usage.

📚 Table of Contents

• Overview
• Topics Covered
• Prerequisites
• Installation
• Usage
• Contributing
• License

🎯 Overview

This repository serves as a comprehensive collection of Operating System programming concepts implemented in C and Java. Perfect for students, developers, and anyone interested in understanding OS internals through practical coding examples.

💡 Topics Covered

1. System Calls - Process Management

• Implementation of fork(), exit(), wait(), and exec() system calls
• Demonstrates process creation, termination, and parent-child relationships
• Examples of process synchronization

2. File Operations System Calls

• Implementation of open(), read(), and write() operations
• File handling and management demonstrations
• Error handling and file permissions

3. CPU Scheduling Algorithms

• First Come First Serve (FCFS) ⏱️
  • Non-preemptive scheduling implementation
  • Process timing and turnover analysis
• Round Robin Scheduling 🔄
  • Time quantum based scheduling
  • Context switching demonstration
• Priority Scheduling ⭐
  • Priority-based process execution
  • Priority queue implementation

4. Multithreading

• Java Implementation ☕
  • Thread creation and management
  • Synchronization mechanisms
  • Thread pool demonstrations
• Pthread Implementation 🧵
  • POSIX thread programming
  • Thread synchronization
  • Mutex and semaphore usage

5. Inter-Process Communication

• Pipe Implementation 📡
  • Parent-child process communication
  • Data transfer demonstrations
  • Bidirectional communication examples

⚙️ Prerequisites

• GCC Compiler (version 7.0+)
• Java Development Kit (JDK 11+)
• POSIX-compliant operating system
• Make utility

🛠️ Installation

# Clone the repository
git clone https://github.com/username/os-concepts-implementation.git

# Navigate to the project directory
cd os-concepts-implementation

# Compile C programs
make all

# Compile Java programs
javac src/java/*.java

🚀 Usage

Each topic has its own directory with specific instructions and examples:

# For System Calls
cd system-calls
./fork_example

# For Scheduling Algorithms
cd scheduling
./fcfs_scheduler

# For Multithreading (Java)
cd multithreading/java
java ThreadExample

# For Multithreading (Pthread)
cd multithreading/pthread
./pthread_example

# For IPC
cd ipc
./pipe_example

👥 Contributing

Contributions are welcome! Please feel free to submit a Pull Request. For major changes, please open an issue first to discuss what you would like to change.

1. Fork the repository
2. Create your feature branch (git checkout -b feature/AmazingFeature)
3. Commit your changes (git commit -m 'Add some AmazingFeature')
4. Push to the branch (git push origin feature/AmazingFeature)
5. Open a Pull Request

🌟 Star this Repository

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Made with ❤️ by Shubham