Final answer:
The term that describes the time from when a process is submitted to when it is completed is called turnaround time. This term encompasses all delays and processing times and is different from waiting time, response time, and throughput.
Step-by-step explanation:
The interval from the time of submission of a process to the time of completion is termed turnaround time. Turnaround time is a term used in computing to describe the total time taken from the moment a process or a task is submitted until it is completed. This includes all types of delays and processing times within a system's operation. It is different from waiting time, which only accounts for the time a process spends waiting in the queue, response time, which is typically used to measure the time from request to first response in interactive systems, and throughput, which measures how many units of work a system can handle in a given period of time.