On the basis of your knowledge of IRQ levels, when you hit any key on the keyboard while the programme is in the process of generating a disc file on your computer, when do you believe the key will be...

On the basis of your knowledge of IRQ levels, when you hit any key on the keyboard while the programme is in the process of generating a disc file on your computer, when do you believe the key will be stored in the keyboard buffer—before or after the file has been created?