For one- or two-semester undergraduate courses in operating systems for computer science, computer engineering, and electrical engineering majors An introduction to operating systems with up-to-date and comprehensive coverage Now in its 9th Edition, Operating Systems: Internals and Design Principles provides a comprehensive, unified introduction to operating systems topics aimed at computer science, computer engineering, and electrical engineering majors. Author William Stallings emphasises both design issues and fundamental principles in contemporary systems, while providing readers with a solid understanding of the key structures and mechanisms of operating systems. He discusses design trade-offs and the practical decisions affecting design, performance and security. The text illustrates and reinforces design concepts, tying them to real-world design choices with case studies in Linux, UNIX, Android, and Windows 10. With an unparalleled degree of support for integrating projects into the course, plus comprehensive coverage of the latest trends and developments in operating systems, including cloud computing and the Internet of Things (IoT), the text provides everything students and instructors need to keep pace with a complex and rapidly changing field. The 9th Edition has been extensively revised and contains new material, new projects, and updated chapters.