Operating Systems Foundations for Computer Science

Understanding how an operating system manages hardware and software resources is fundamental to computer science, yet many resources make these concepts feel overly abstract. This text-based course guides you through the core components of modern operating systems, helping you transition from a basic programmer to someone who understands the intricate mechanisms of process scheduling, memory management, and system security. What you'll learn: 1. Understand the fundamental architecture of modern operating systems, including kernel modes and system calls. 2. Analyze process management, thread execution, and modern multi-core CPU scheduling algorithms. 3. Master memory management techniques, from virtual memory and paging to segmentation and caching. 4. Explore file system structures, storage allocation methods, and input/output device management. 5. Solve classic synchronization problems using semaphores, mutexes, and deadlock prevention strategies. 6. Examine modern OS innovations, including virtualization, containerization basics, and security sandboxing. We begin with essential terminology and the foundational architecture of operating systems. From there, we systematically explore the core subsystems—processes, memory, storage, and security—through clear written explanations, conceptual walkthroughs, and practical scenarios. This course is designed for computer science students, exam aspirants, and self-taught developers looking for a solid academic foundation in operating systems. No prior OS knowledge is required. Start reading today to build a powerful mental model of how computers actually work.