When you take any process, the process is going to have  various times-

Arrival Time of process(AT) or submission time- The time when the process arrives into ready state is Arrival Time(AT).

Burst Time of process(BT)- The time required for the process for its execution is Burst Time(BT).

Completion Time of Process(CT)- The time when the process completes its execution is completion time(CT).

Turnaround Time(TAT)- The time difference between completion time and arrival time is TAT.

TAT= CT-AT

Waiting Time(WT)-

WT= TAT-BT
Total Interval(TAT)= Useful Time(BT)+ Wait Time(WT)

Response Time(RT)- The first responded time or first scheduled time of process.

     

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