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🖥️ Custom Operating System (OS)

Welcome to Custom OS, a minimalist operating system built entirely from scratch as a hands-on learning project. This OS is designed to explore the world of low-level system programming, hardware interaction, and core OS concepts like bootloaders, memory management, and basic kernel development.

⚙️ Key Features

  • 🧹 Bootloader – Handles the initial boot process (custom or GRUB-based).
  • 🧠 Kernel – A monolithic kernel with basic interrupt handling.
  • 🧮 Memory Management – Implements simple paging and memory allocation techniques.
  • 🎹 Basic Drivers – Text-based I/O support for keyboard and screen.
  • 💻 Shell (Optional) – A minimal CLI interface for command execution.

🧰 Technologies Used

  • Languages: C (for kernel logic), Assembly (for boot & low-level operations)
  • Tools: GCC, NASM, QEMU (emulator), Make (build automation)
  • Platform: ARM64

🛠️ Getting Started

✅ Prerequisites

  • GCC (cross-compiler recommended)
  • NASM (assembler)
  • QEMU (for virtualization)
  • Make

📥 Installation

  1. Clone the repository: 
    git clone https://github.com/your-username/custom-os.git
cd custom-os
  2. Build and run the OS with QEMU: 
    make run

🎯 Future Goals

  • 🧵 Multitasking – Introduce a basic process scheduler.
  • 📁 Filesystem – Develop a simple custom filesystem for file operations.
  • 🖱️ Hardware Support – Add drivers for mouse, disk, and other peripherals.
  • 🧪 Testing Framework – Add basic unit tests for kernel components.