A terminal-based operating system simulator built with pure Python. This project demonstrates core programming concepts such as Object-Oriented Programming, file handling, system simulation, and modular architecture without relying on external frameworks.
The simulator mimics basic operating system components including user authentication, file management, process handling, and memory simulation.
The goal of this project is to simulate how a simple operating system manages different subsystems. Instead of focusing on UI or frameworks, the emphasis is on core logic, system design, and clean code structure.
This project was built as a learning exercise to strengthen understanding of:
- Python fundamentals
- OOP design
- Modular programming
- State management
- File-based persistence
The goal of this project is to simulate how a simple operating system manages different subsystems.
-
User Authentication
- Register and login system
- Persistent user storage
-
File System Simulation
- Create virtual files
- Read stored file content
- Delete files
- List available files
-
Process Manager
- Simulate running processes
- Assign process IDs (PID)
- View active processes
- Terminate processes
-
Memory Manager
- Simulate memory allocation
- Track used and free memory
- Deallocate memory
-
System Logging
- Track important system events
- User login activity
- File operations
- Process actions
python-os-simulator/
│
├── core/
│ ├── file_system.py
│ └── logger.py
│ ├── Main.py
│ ├── memory.py
│ ├── pos.py
│ ├── process.py
│
├── data/
│ │ └─ files/
│ ├── files.json
│ ├── logs.txt
│ ├── test.txt
│ └── users.txt
│
│
├── screenshots
│
├── .gitattributes
├── .gitignore
└── README.md
Each module is responsible for a specific subsystem of the simulated OS.
When the program starts, users are presented with a login/register interface. After authentication, the main system menu allows interaction with various simulated OS components.
The simulator uses file-based storage to persist data between sessions.
====================================
PYTHON OS
====================================
1. Login
2. Register
3. Exit
Enter choice: 1
Login successful!
Main Menu
1. File System
2. Process Manager
3. Memory Manager
4. View Logs
5. Logout
- Python 3
- Object-Oriented Programming
- File Handling
- JSON / Text Storage
No external libraries or frameworks were used.
- Fixed login validation
- Fixed process manager edge case
- Improved memory manager safety
- Initial release
- File system
- Process manager
- Memory manager
- Logging
Dhruv
Python Developer | Exploring System Design, OOP, and Low-Level Programming