The most common mechanism for implementing multiprogramming was the introduction of the ____ concept, which is when the CPU is notified of events needing operating systems services.
A) paging
B) sharing
C) messaging
D) interrupt

Question

Quizplus · Accepted Answer

The most common mechanism for implementing multiprogramming is the interrupt concept. When a program needs a certain operating system service, it generates an interrupt signal that transfers control from the program to the operating system, which then performs the requested service. Interrupts allow multiple programs to run concurrently by enabling the CPU to switch between them in real-time. Paging, sharing, and messaging are other useful techniques for implementing multiprogramming, but they are not as fundamental as interrupts.

The Most Common Mechanism for Implementing Multiprogramming Was the Introduction