QUESTION

$($a$)$ While retrieving data from Track $25,$ the following list of requests arrives:

Track $50,70,10,30,5,$ and $75.$ The directional bit was indicates that the head was moving

from track $0$ towards the maximum track of $90.$ It takes $1ms$ to travel from one track to next.

Use the FCFS strategy to calculate the total seek time and average seek time involved in

servicing all requests. Draw a diagram and show how result is reached.

$($b$)$ Apply the directed resource graphs to check for the presence of a deadlock in the system of

processes and resource outlined in the figure. Explain your approach.

$($c$)$ Name five responsionnes o$1$ me managers: