Real-Time Operating System (RTOS) Simulation in Java

This project is a Java-based simulation of a Real-Time Operating System (RTOS) that demonstrates process scheduling, execution, and termination using a graphical user interface (GUI) built with Java Swing.

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🧩 Features

• Priority-Based Scheduling: Processes are sorted by priority before execution.
• Dynamic Process Management: Add, execute, and terminate processes in real-time.
• Automatic Runtime Updates: Each process displays an updated runtime while active.
• Interactive GUI: Buttons for adding processes, dispatching them to the CPU, and ending them manually.
• Process History Table: Tracks completed or terminated processes automatically.
• Encapsulated OOP Design: Separate classes for scheduling logic and GUI handling.

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🖼️ Screenshots

All screenshots are stored in the screenshots folder.

Example screenshots include: - Process addition and queue display\

• CPU runtime update\
• Completed/terminated process log

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🧠 Technical Overview

Programming Language

• Java (JDK 17 or later)

Frameworks & Libraries

• Swing for GUI design\
• javax.swing.Timer for real-time updates

Core Classes

• Os -- Handles GUI components and user interaction\
• Priority -- Implements process scheduling logic\
• Process -- Represents an individual process with priority and runtime attributes

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🚀 How to Run

1. Clone this repository:

   git clone https://github.com/yourusername/rtos-simulation.git

2. Open the project in IntelliJ IDEA, Eclipse, or your preferred IDE.

3. Compile and run the Os.java file.

4. Add processes through the interface and start simulations.

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📁 Folder Structure

RTOS-Simulation/
│
├── src/
│   └── Os.java
│
├── screenshots/
│   ├── Screenshot_1.png
│   ├── Screenshot_2.png
│   └── Screenshot_3.png
│
└── README.md

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💡 Future Improvements

• Implement preemptive scheduling using Java threads.\
• Add a CPU utilization progress bar.\
• Export process logs to .csv for persistence.\
• Refactor GUI layout for better scalability.

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👨‍💻 Author

Murphy Kwame Frimpong
Master's Student in Computer Science and Software Engineering
Constructor University, Bremen, Germany
📧 frimpongkwamemurphy1@gmail.com

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🏁 License

This project is licensed under the MIT License -- see the LICENSE file for details.