Foundations of Concurrency and Multi-Threading in Operating Systems

Modern software must handle multiple tasks simultaneously to remain responsive, yet understanding how operating systems manage these operations can feel overwhelming. This text-based course demystifies how computers execute concurrent operations behind the scenes. You will transition from writing simple sequential programs to understanding how multi-threaded systems utilize modern multi-core processors, gaining a solid mental model of how threads operate, context switch, and share resources. What you'll learn: Understand the fundamental differences between processes and threads within an operating system; Analyze how the operating system schedules threads and performs context switching; Identify common concurrency issues like race conditions, deadlocks, and data corruption; Explore thread synchronization techniques including mutexes, semaphores, and locks; Examine modern concurrency patterns such as thread pools and the foundation of async/await models. The course begins with foundational definitions of operating system processes before diving into thread creation and execution lifecycles. You will then progress through synchronization strategies and modern multi-threading patterns using clear written explanations and conceptual code snippets. This course is designed for beginner developers and computer science students looking to understand system-level behavior, with no prior concurrency experience required. Start reading today to build a strong foundation in concurrent systems.