The third edition of Andrew Tanenbaum's classic work "Operating Systems: Design and Implementation" is a one-of-a-kind textbook that successfully combines the theory and practice of building operating systems. The book describes in detail the processes of interprocess communication, semaphores, monitors, message passing, scheduler algorithms, input/output, deadlock resolution, device drivers, memory management algorithms, file system development, and also touches on security and data protection issues. At the same time, the specific UNIX-compatible MINIX operating system is discussed and its source code is provided (you will find it on the CD). This allows you not only to study the fundamental principles, but also to observe their application in real operating systems.