Kernel Development Fundamentals: Build a Multitasking OS

Ever wondered how an operating system manages hardware and runs multiple programs at once? This course provides a clear path for anyone interested in the inner workings of computers to build their own functional kernel from scratch. You will start by exploring the foundational concepts of CPU architecture and memory before writing the very first instructions that bring a system to life. By following this written guide, you will transform a blank disk into a multitasking environment capable of running concurrent processes and managing files. You will gain a deep understanding of how software interacts directly with hardware, moving from legacy boot sequences to modern memory management techniques. What you'll learn: - Understand the system boot process and write a custom bootloader in Assembly - Transition from legacy Real Mode to 32-bit Protected Mode for enhanced stability - Implement virtual memory and paging to provide process isolation and security - Build a FAT16 filesystem driver to read and manage data on disk - Develop a multitasking scheduler to handle concurrent threads and processes - Create an interactive shell to communicate directly with your running kernel - Apply modern security principles through hardware-level privilege separation The course begins with essential terminology and the mechanics of low-level programming. You will then progress through the development of a bootloader, memory manager, and filesystem, culminating in a multitasking system with a user interface. This course is designed for beginners and curious programmers who want to understand the core of computing without needing prior kernel development experience. Start your journey into the heart of computer systems today.