Process Timings in Operating System | Lecture 6 | Operating System | GATE 2027

CPU Scheduling Process Timings in Operating Systems | Arrival Time, Burst Time, Turnaround Time, Waiting Time

In this video, we discuss the important timing parameters used in CPU Scheduling in Operating Systems. These concepts are extremely important for GATE CSE preparation, Operating System exams, and technical interviews.

We start with a quick recap of context switching, preemption, and CPU-bound vs IO-bound processes, and then explain key scheduling terms such as arrival time, burst time, completion time, turnaround time, waiting time, response time, and IO time with examples.

Understanding these parameters is essential for solving CPU scheduling numerical problems involving algorithms like FCFS, SJF, Round Robin, and Priority Scheduling.

This lecture is designed for computer science students, beginners learning OS, and GATE aspirants.

Playlist link : https://www.youtube.com/watch?v=ukdwCThqIyw&list=PLGLwXxgp-0Ec-vx6FXv8wpg26itqAayYD

Timestamps

0:00 Recap Starts
0:28 Context Switch (Recap Continued)
2:21 Preemption (Recap Continued)
2:31 CPU Bound vs IO Bound (Recap Continued)
3:00 Arrival Time
3:32 Burst Time
4:00 Completion Time
4:28 Turnaround Time
5:03 Waiting Time
5:50 Response Time
7:43 IO Time
8:00 Example
9:20 CPU Wait Time vs IO Wait Time

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