Calculate the waiting times and average waiting time for processes P1, P2, P3, and P4 using the First Come First Served (FCFS) scheduling algorithm. Given arrival times and burst times, determine the

here's the calculation for the waiting times and average waiting time using the First Come First Served (FCFS) scheduling algorithm, considering both burst times and arrival times.

In FCFS, processes are executed in the order they arrive. If a process arrives while the CPU is busy, it waits. The waiting time for a process is the time it spends in the ready queue before its execution begins.

Given Data:

Process	Arrival Time ($AT$)	Burst Time ($BT$)
P1	0	15
P2	4	1
P3	5	3
P4	6	4

We will calculate the Start Time ($ST$), Completion Time ($CT$), and Waiting Time ($WT$) for each process.
The formula for Start Time is $ST_i = \max(AT_i, CT_{i-1})$ (where $CT_0 = 0$).
The formula for Completion Time is $CT_i = ST_i + BT_i$.
The formula for Waiting Time is $WT_i = ST_i - AT_i$.