Question 1: Calculate Avg TAT & Avg WT.
| P.No | AT | BT |
| 1 | 0 | 4 |
| 2 | 1 | 3 |
| 3 | 2 | 1 |
| 4 | 3 | 2 |
| 5 | 4 | 5 |
| P.No | AT | BT | CT | TAT=CT-AT | WT=TAT-BT |
| 1 | 0 | 4 | 4=CT for P1 | 4 | 0 |
| 2 | 1 | 3 | 7=CT for P2 | 6 | 3 |
| 3 | 2 | 1 | 8=CT for P3 | 6 | 5 |
| 4 | 3 | 2 | 10=CT for P4 | 7 | 5 |
| 5 | 4 | 5 | 15=CT for P5 | 11 | 6 |
| AVG=34/5=6.8 | Avg=19/5=3.8 |
| (A) | (B) | (C) | (D) | |
| TAT | 6.3 | 6.6 | 7.3 | None |
| WT | 4.3 | 4.6 | 2.3 |
| P.No | AT | BT | TAT=CT-AT | WT=TAT-BT |
| 1 | 0 | 4 | 16 | 12 |
| 2 | 1 | 3 | 5 | 0 |
| 3 | 2 | 1 | 7 | 4 |
| 4 | 3 | 2 | 1 | 0 |
| 5 | 4 | 5 | 8 | 6 |
| 13 | 7 | |||
| AVG=50/6=8.3 | Avg=29/6=4.8 |
| P No. | AT | BT |
| 1 | 5 | 3 |
| 2 | 7 | 1 |
| 3 | 6 | 2 |
| 4 | 1 | 1 |
| 5 | 1 | 2 |
| 6 | 8 | 3 |
| P No. | AT | BT | TAT | WT |
| 1 | 5 | 3 | 3 | 0 |
| 2 | 7 | 1 | 4 | 3 |
| 3 | 6 | 2 | 4 | 2 |
| 4 | 1 | 1 | 1 | 0 |
| 5 | 1 | 2 | 3 | 1 |
| 6 | 8 | 3 | 6 | 3 |
| P No. | AT | BT |
| 1 | 0 | 30 |
| 2 | 1 | 2 |
| 3 | 2 | 2 |
| P No. | AT | BT |
| 1 | 0 | 30 |
| 2 | 1 | 2 |
| 3 | 2 | 2 |
If the First process is CPU bound process, then, avg waiting time of all other process is very big. This effect is called CONVOY EFFECT]]>