FCFS CPU Scheduling: Foundational Operating System Algorithms

Every operating system must decide which process gets CPU time and when. Understanding the First Come First Serve (FCFS) algorithm is the essential first step to grasping how computers manage workloads and execute tasks. Through clear explanations and practical written exercises, this course guides you through the core principles of process queue management and scheduling theory. By completing this course, you will build a solid conceptual foundation in operating systems. You will learn how to analyze process queues, calculate critical performance metrics, and understand the trade-offs of non-preemptive scheduling. What you'll learn: - Understand foundational operating system concepts, including processes, CPU bursts, and scheduling queues - Analyze the mechanics of the First Come First Serve (FCFS) scheduling algorithm - Calculate essential performance metrics such as arrival time, burst time, waiting time, and turnaround time - Identify the limitations of FCFS, including the convoy effect, and compare it with modern scheduling paradigms - Practice constructing textual Gantt charts to trace process execution step-by-step The course begins with core terminology and CPU scheduling basics before diving deep into FCFS mechanics. You will walk through detailed written examples, perform step-by-step metric calculations, and explore how these foundational concepts relate to modern multi-core operating systems. This course is designed for computer science students, aspiring systems developers, and tech enthusiasts looking for a clear introduction to OS internals. No prior operating systems experience is required. Start reading to build your foundational knowledge of CPU scheduling today.