Q20

The head of a moving head disk with $100$ tracks numbered $0$ to $99$ is currently serving a request at track $55$. If the queue of requests kept in FIFO order is

$$10, 70, 75, 23, 65$$

which of the two disk scheduling algorithms FCFS (First Come First Served) and SSTF (Shortest Seek Time First) will require less head movement? Find the head movement for each of the algorithms.