This repository contains a three-part Operating Systems lab project that covers foundational OS concepts through practical implementation:

os_lab_project/
├── kali_linux_setup/              # Part 1: Kali Linux Installation
│   └── installation_notes.md      # Notes or description of installation
│
├── virtual_memory_gui/            # Part 2: Virtual Memory Educational Tool
│   ├── vm_gui.py                  # Main GUI simulator script
│   ├── README.md                  # Documentation for the Virtual Memory GUI
│
├── custom_file_system/            # Part 3: Simulated File System
│   ├── custom_fs.py               # File system logic (FileSystem class)
│   ├── gui.py                     # Tkinter GUI frontend
│   ├── disk.img                   # Virtual disk image
│   ├── fs_metadata.json           # Metadata storage
│   ├── disk_dump.txt              # (Optional) Human-readable disk dump
│   ├── file2.txt                  # Example file for testing
│   ├── README.md                  # Documentation for the Custom File System
│   └── __pycache__/               # Compiled Python files
│
├── report.pdf                     # Optional project report
└── README.md                      # Root readme with overview

• Task: Install Kali Linux on a virtual machine or a physical system.
• Goals:
  • Understand the Linux installation process and system partitioning.
  • Perform initial system setup and configurations.
  • Gain basic system-level knowledge including file system structure, users/permissions, and common utilities.
• Deliverable:
  • 🎥 Video to setup Kali Linux

• Description: A GUI-based tool to visually demonstrate how virtual memory is managed in an operating system.
• Features:
  • Page table and frame mapping visualization
  • Page replacement algorithms (e.g., FIFO, LRU)
  • Step-by-step simulation of memory access and replacement
• Location: See virtual_memory_gui/

• Description: A simple file system implemented in Python, operating on a simulated disk (disk.img).
• Features:
  • Block-level storage and allocation
  • Hierarchical directory structure
  • File and directory operations: create, read, write, delete
  • File permission bits (Read, Write, Execute)
  • Disk usage stats (total, used, and free space)
• Location: See custom_file_system/

• Introduced a Tkinter-based GUI for user-friendly interaction.
• Enhanced file operations with better error handling and detailed disk usage statistics.
• Added a feature to dump disk contents into a human-readable .txt file for inspection.

• Added support for the MRU (Most Recently Used) page replacement algorithm.
• Improved visualization of memory frames and page tables.
• Enhanced the statistics window with a bar graph comparing page faults across algorithms.

A report.pdf may be included that documents project details, screenshots, and outcomes.

• Python 3.x
• GUI framework (e.g., Tkinter or PyQt)
• Virtualization Software (e.g., VirtualBox or VMware)
• Kali Linux ISO (for Experiment 1)

This project was created for academic purposes. Contributions and suggestions are welcome via issues or pull requests.