________ refers to the ability of an operating system to manage multiple requests by the same user without having to have multiple copies of the program.

Explanation

Multiprogramming A computer running more than one program at a time (like running word and google chrome simultaneously). Multiprogramming occurs by switching from one process to other Multiprocessing A computer using more than one CPU at a time. Multiprocessing occurs by means of parallel processing Multitasking Tasks sharing a common resource (like 1 CPU). Multithreading A thread is a basic unit of CPU utilization. Multithreading is an execution model that allows a single process to have multiple code segments (i.e., threads) running concurrently within the “context” of that process