Operating Systems course syllabus
Follow the lessons in order — each one builds on the last. Tick them off as you go.
- Operating Systems Introduction: Processes & Threads What an operating system does, kernel vs user mode, system calls, and the difference between processes and threads. 5 min
- CPU Scheduling Algorithms FCFS, SJF, Round Robin and priority scheduling explained with worked examples of waiting and turnaround time. 6 min
- Synchronization, Race Conditions & Deadlocks Race conditions, mutexes, semaphores, the producer–consumer problem, and the four conditions for deadlock — with Python demos. 6 min
- Memory Management & Virtual Memory Stack vs heap, paging, page tables, virtual memory, page faults and page replacement algorithms like LRU and FIFO. 6 min
- File Systems & I/O How files, directories and inodes work, buffering and caching, blocking vs non-blocking I/O, and why fsync matters. 5 min
- Operating Systems Interview Questions The most asked OS interview questions on processes, threads, scheduling, deadlocks, paging and virtual memory, with answers. 4 min
Operating Systems FAQ
Is this Operating Systems tutorial free?
Yes. All 6 Operating Systems lessons are free to read online with no sign-up. Each one includes working code examples you can copy and run.
Is Operating Systems good for beginners?
Yes. The tutorial starts with "Operating Systems Introduction: Processes & Threads" and builds up one concept at a time, so you don't need any prior Operating Systems experience — just follow the lessons in order.
How long does it take to learn Operating Systems?
Reading all 6 lessons takes about 1 hour. Most learners need a few weeks of hands-on practice alongside the lessons to feel confident using Operating Systems on real projects.
What should I learn after Operating Systems?
Good next topics are Algorithms, Computer Networks, Data Structures, Design Patterns. The Computer Science Fundamentals Roadmap shows the full order.