The UNIX Fourth Edition Source Code Commentary: A Complete Guide to Understanding the UNIX v4 Operating System
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1.08 kg
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- The UNIX Fourth Edition Source Code CommentaryIn 1974, a magnetic tape containing UNIX Fourth Edition was sent from Bell Labs to the University of Utah. Fifty years later, it was rediscovered in a storage closet—the only surviving copy of the first UNIX written in C.This book is a complete guide to that code.At just 10,000 lines, UNIX v4 is small enough for one person to understand completely—yet it contains a fully functional operating system with multiprocessing, a hierarchical filesystem, device drivers, and a shell. Every concept that defines modern computing is here, in its purest form.What you’ll learn:• How an operating system boots and initializes itself • How processes are created, scheduled, and terminated • How the filesystem stores and retrieves data • How system calls bridge user programs and the kernel • How device drivers interface hardware to soware • How the shell parses and executes commands • How the C compiler transforms source into machine codeWho this book is for:• Systems programmers who want to understand operating systems at the deepest level • Computer science students seeking a comprehensible, complete OS to study • Historians of computing exploring UNIX’s origins • Anyone curious how 10,000 lines of code changed the worldThe code is elegant. The design is timeless. The ideas are foundational.”UNIX is basically a simple operating system, but you have to be a genius to understand the simplicity.”– Dennis Ritchie
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