Operating System Development

From the fundamentals of TCP/IP to advanced packet manipulation and analysis techniques, we have delved deeply into the core concepts that power modern networks. The practical examples and hands-on approach were created to teach you real-world skills that you can immediately apply to your projects. Whether you're developing network applications, troubleshooting network issues, or automating network tasks, the knowledge in this book will help you succeed.

A hands-on guide to building a complete FAT12 filesystem driver in C — from reading your first sector to running code in QEMU. Write everything yourself, boot sector to cat command.

The first-ever book aimed at introducing operating system development to absolute beginners. The topics begin with programming in C and programming in assembly, and progress toward practical OS development.The book uses only simple methods, so it covers only a few essential topics in C and assembly programming, making it suitable for beginners.

What really happens when you open a website, send a message or connect to a server across the world? This book builds the Internet from first principles, revealing how bits become packets, packets cross networks and protocols make it all work. Learn the machinery behind the Internet by understanding why each piece exists and how it fits together.

Go beyond the NTFS API and learn how the filesystem really works. This book explains NTFS from its on-disk structures to a complete working implementation, giving you the knowledge to understand and build one of the world's most sophisticated filesystems.

The Linux ext4 filesystem is one of the world's most widely used filesystems, but its internal design is often difficult to understand. This book provides a practical, implementation-focused guide to ext4, covering its on-disk structures, algorithms, and core subsystems with detailed explanations, production-quality code, and references to the Linux kernel source.

This book collects three essays I wrote in 2022 about the NetBSD operating system about binary formats and upgrades by building from source.

A working x86-64 kernel in 90 pages — bootloader, scheduler, FAT12 driver, window manager — all the way to a real PC.

Go beyond Go syntax and learn how real systems are built. Modern Go Systems Programming with Go 1.27 takes you from core language concepts to concurrency, networking, databases, observability and deployment, with runnable examples that show how everything fits together in production-grade distributed systems.

Go beneath C# and .NET—from CPU, kernel, processes and threads to IL, JIT, native code, stacks, heaps and GC. Build the runtime mental model you need before deciding where, why, and whether a system should be distributed.

SIMD can make software dramatically faster, but getting it right takes more than knowing a few intrinsics. This book shows you how vectorization really works, how to avoid costly mistakes and how to turn ordinary code into fast, production-ready software with techniques you can use again and again.

Build fast, secure and portable applications with WASI. Start with the fundamentals, then move into components, WIT, Wasmtime and real production patterns using Rust, C, Go and JavaScript. From sandboxed plugins to serverless and edge workloads, this practical guide gives you the skills to take WebAssembly from your first experiment to production.

Detection keeps getting smarter. So do the systems built to avoid it. Evasion Engineering explores the techniques, architectures and design principles behind stealth in modern computing, from operating systems and networks to cloud environments and machine learning. A practical deep dive for security professionals who want to understand how advanced evasion really works.

Discover how eBPF is changing Linux systems engineering. Starting with the fundamentals, this book walks you through building, debugging and deploying real eBPF programs for observability, networking, security and performance. Learn practical techniques you can use with confidence in production across modern Linux environments.

If you know Linux, you already have most of the skills you need to master FreeBSD. This practical guide shows where the systems differ, why those differences matter and how to deploy, secure and manage FreeBSD with confidence using comparisons that make every concept easy to understand.