A process is an executing program with its own memory space, while a thread is a smaller execution unit within a process that shares its resources.
Duration of the online course: 6 hours and 0 minutes
4.7
(108)
Boost your IT skills with a free operating systems course: understand processes, scheduling, threads, IPC and synchronization, plus quizzes for practice.
Understanding operating systems is one of the fastest ways to level up in technology, whether your goal is IT support, hardware troubleshooting, or software development. This free online course builds a solid foundation in how modern computers actually work behind the scenes, helping you move from simply using a device to reasoning about its behavior, performance, and reliability. By the end, you will be able to explain core operating system responsibilities and make sense of the decisions that affect speed, responsiveness, and stability.
You will start with the essential concepts: what an operating system is, why it exists, and which components work together to manage hardware and applications. From there, the course moves into operating system design and structure, clarifying common architectural approaches and why some are more flexible than others. This knowledge is especially valuable when you need to compare systems, understand constraints, or choose the right environment for a task.
A major focus is the process model: how programs become processes, how the system keeps track of them, and what happens when multiple tasks share a single CPU. You will practice reasoning with process states and the data structures that preserve execution context. Next, you will develop a practical understanding of CPU scheduling, including how different policies impact turnaround time, response time, and overall efficiency. The exercises guide you through realistic scheduling scenarios so you can confidently analyze outcomes instead of memorizing definitions.
As the course progresses, you will explore threads, interprocess communication, and the challenges that appear when work runs concurrently. You will learn why synchronization is necessary, what can go wrong without it, and how classical solutions and semaphores coordinate safe access to shared resources. Frequent questions and practice activities reinforce each concept, making the course useful both for beginners and for learners preparing for interviews or strengthening day-to-day troubleshooting skills.
6 hours and 0 minutes of online video course
Digital certificate of course completion (Free)
Exercises to train your knowledge
100% free, from content to certificate
What is the difference between a process and a thread in an operating system?
A process is an executing program with its own memory space, while a thread is a smaller execution unit within a process that shares its resources.
How do FCFS, SJF, Round Robin, and priority CPU scheduling algorithms differ?
FCFS runs jobs in arrival order, SJF selects the shortest job, Round Robin assigns time slices, and priority scheduling runs the highest-priority process first.
What are semaphores used for in operating systems?
Semaphores coordinate concurrent processes or threads by controlling access to shared resources and helping prevent race conditions.
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Course comments: Computer operating systems
Students found the free online course excellent, helpful, and informative. They appreciated the clear, concise, and understandable introduction to operating systems, along with the valuable knowledge provided.
Suryawanshi Pratap Santosh
Awesome content
Muskan Pant
nice
Ikpi Godswill Sunday
thanks for putting mie through with this studies.
Jose Amandio de Almeida
This Course I verry like is Because Help full. Thanks Coach Tami Sorgente
Deepak
AWESOME KNOWLEDGE AND INFORMATION
Mpho Tseki
Thank You very much for making a clear concise understandable introduction into Operation System