QTMOS 🧠💻

A minimal operating system built from scratch using x86 Assembly and C.

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🚀 Overview

QTMOS is a beginner-friendly OS project that demonstrates the core concepts of operating systems:

• Booting from BIOS
• Writing a bootloader in Assembly
• Loading and running a C-based kernel
• Basic terminal (CLI)
• Custom command system

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⚡ Current Features (MVP)

• Prints QTMOS at boot

• Loads a simple kernel

• Displays:

  Welcome to QTMOS
  >
  

• Basic command support:

  • echo <text> → prints text

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🧱 Project Structure

qtmos/
│
├── boot/
│   └── boot.asm        # Bootloader
│
├── kernel/
│   └── kernel.c        # Kernel entry point
│
├── build/              # Compiled output
│
├── linker.ld           # Linker script
├── Makefile            # Build automation
└── README.md

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⚙️ Requirements

• NASM
• GCC
• QEMU
• Make

Install (Kali / Debian / WSL):

sudo apt update
sudo apt install nasm gcc qemu-system-x86 make -y

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🛠️ Build & Run

make
make run

If GUI doesn’t work (WSL):

qemu-system-x86_64 -nographic -drive format=raw,file=build/os.bin

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🧠 Goal

This project is focused on learning OS fundamentals, not replacing Linux or Windows.

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🔥 Roadmap

• Load kernel from bootloader properly
• Keyboard input support
• CLI improvements
• User system (admin setup)
• Basic file system (future)

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👨‍💻 Author

Built by a developer exploring low-level systems, OS design, and computer fundamentals.

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⚠️ Note

This OS runs in real mode / minimal environment and is intended for learning purposes only.

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