Question

Write Algoritm , code and output. In C++

In Operating Systems ,

Simulate with a program to schedule disk in seek optimization.

Answer 1

// C++ program to demonstrate // FCFS Disk Scheduling algorithm #include <bits/stdc++.h> using namespace std; int size = 8; void FCFS(int arr[], int head) {     int seek_count = 0;     int distance, cur_track;     for (int i = 0; i < size; i++) {         cur_track = arr[i];         // calculate absolute distance         distance = abs(cur_track - head);         // increase the total count         seek_count += distance;         // accessed track is now new head         head = cur_track;     }     cout << "Total number of seek operations = "          << seek_count << endl;     // Seek sequence would be the same     // as request array sequence     cout << "Seek Sequence is" << endl;     for (int i = 0; i < size; i++) {         cout << arr[i] << endl;     } } // Driver code int main() {     // request array     int arr[size] = { 176, 79, 34, 60, 92, 11, 41, 114 };     int head = 50;     FCFS(arr, head);     return 0; }

Total number of seek operations = 510
Seek Sequence is
176
79
34
60
92
11
41
114

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