Understanding Interrupts and Multitasking

What is an Interrupt?

• A signal that tells the CPU to pause its current task

• A type of software error

• A method for storing data temporarily

• A way to run multiple programs simultaneously

How are Hardware Interrupts triggered?

• By software events

• By external devices like keyboards and mice

• By the CPU itself

• By user commands

What is the role of Buffers in data flow?

• To store data temporarily

• To process interrupts

• To manage CPU tasks

• To enhance system performance

What happens when an Interrupt Service Routine (ISR) completes its task?

• It shuts down the CPU

• It returns control to the CPU

• It generates a new interrupt

• It saves the current state

What is the result of efficient multitasking enabled by interrupts?

• Improved system performance

• Increased CPU temperature

• Slower response times

• More software errors

Fill in the blank: Interrupts ensure that critical events are handled ______.

1. Once the ISR completes its task, it returns control to the CPU. The CPU then restores its previous state and resumes its original task.

• 1. Return from Interrupt:

• 1. Return from sender:

• 1. Return from memory management:

• 1. Stop after Interrupt:

What Happens as a Result of Interrupts:

• • Efficient Multitasking: Interrupts allow the CPU to switch between tasks quickly, improving system responsiveness.

• • Real-time Response: Interrupts ensure that critical events, such as device input or error conditions, are handled promptly.

• • Negative Response: Interrupts ensure that critical events, such as device input or error conditions, are removed

• • Positive Multitasking: Interrupts allow the Hard disk to switch between tasks slowly, reducing heat exchange.

An interrupt is a signal that tells the CPU to pause what it's doing and attend to something more urgent. This could be a device like a printer needing attention or a program requesting resources.

• true

• false

A CPU can switch to another program, making it seem like the computer is doing _______ things at once.