Optimal Page Replacement Algorithm in OS | Step-by-Step Example for Exam

This video explains Optimal Page Replacement Algorithm and Least Recently Used (LRU) Algorithm with handwritten example in Operating System. 📌 Topics covered: ✔ What is Page Replacement ✔ Optimal Algorithm concept ✔ Step-by-step reference string example ✔ How page faults are calculated ✔ Least Recently Used (LRU) Algorithm ✔ Difference between Optimal & LRU ✔ Exam-oriented problem solving 📚 Useful for: • B.Tech / BE – CSE & IT • Operating System subject • University exams & viva 👉 Subscribe to Engineering Lectures for simple handwritten OS concepts.