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Disk Scheduling Algorithm in Operating System Video Lecture | Crash Course for UGC NET Computer science

FAQs on Disk Scheduling Algorithm in Operating System Video Lecture - Crash Course for UGC NET Computer science

1. What is a disk scheduling algorithm in the operating system?

Ans. A disk scheduling algorithm is a method used by the operating system to determine the order in which disk I/O requests are serviced by the disk controller.

2. What is the purpose of disk scheduling algorithms?

Ans. The purpose of disk scheduling algorithms is to optimize the performance of the disk by reducing the seek time and improving the overall efficiency of disk operations.

3. What are some common disk scheduling algorithms used in operating systems?

Ans. Some common disk scheduling algorithms used in operating systems include FCFS (First-Come-First-Serve), SSTF (Shortest Seek Time First), SCAN, C-SCAN, LOOK, and C-LOOK.

4. How does the SCAN disk scheduling algorithm work?

Ans. The SCAN disk scheduling algorithm services requests in a linear fashion, moving the disk arm from one end of the disk to the other and then back again, servicing requests in between based on their position on the disk.

5. How does the C-LOOK disk scheduling algorithm differ from the LOOK algorithm?

Ans. The C-LOOK disk scheduling algorithm is a variant of the LOOK algorithm that only services requests in one direction and does not move to the end of the disk when there are no more requests in that direction, which can improve the overall efficiency of disk operations.

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Sep 09, 2025 Last updated

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