Why is operating system described as an interrupt driven software?

Answer 1

An operating system is described as an "interrupt-driven software" because basically everything that goes on software-wise is some sort of interrupt to the OS. Whenever you press a key or click or even move the mouse, an interrupt is sent to the operating system that retrieves the previously saved data about the event, updates it, refreshes the current state of the event, and then returns back to the user. All of this happens so quick that we don't notice a difference.

Answer 2

An operating system is described as an interrupt driven software because it is responsible for managing a computer's hardware resources. It assigns tasks to different processes, manages memory and handles input/output functions such as printing or displaying contents on the screen. To do this efficiently, the OS relies on interrupts that allow it to pause one process while a higher priority task requires its attention. Interrupts are generated by devices connected to the computer such as a mouse or keyboard and tell the OS which task needs handling first. By responding quickly to these interrupts, an operating system can mediate between applications and hardware without wasting time when switching between tasks.

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