FCFS Scheduling Algorithm | Gantt Chart, Waiting Time & Turnaround Time | OS Tutorial

In this video, we explain First Come First Serve (FCFS) Scheduling in Operating System in a very simple and exam-oriented way. FCFS is the basic and most important CPU scheduling algorithm, and it is frequently asked in college exams, viva, and placement interviews.

This lecture covers FCFS scheduling concept, working, Gantt Chart construction, numerical examples, waiting time, turnaround time, advantages, disadvantages, and convoy effect. The explanation is step-by-step and beginner-friendly, so even students who are new to Operating System can understand easily.

The Gantt Chart in FCFS is explained clearly with proper time scale, which helps students solve numerical problems confidently in exams. This video is specially useful for B.Tech, BCA, MCA, Diploma, and Computer Science students preparing for Operating System exams and placements.

📌 Topics Covered:

What is FCFS Scheduling

Type of FCFS (Non-Preemptive)

Gantt Chart in FCFS

Waiting Time & Turnaround Time

Numerical Example

Advantages & Disadvantages

Convoy Effect

👉 Next videos will cover SJF, Priority Scheduling, and Round Robin with numericals.

If you want clear OS concepts with exam-ready notes, this video is perfect for you.

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