Definitions for "Interrupt request"
Keywords:  irq, cpu, processor, hardware, keyboard
This forces the CPU to stop what it is doing so that it can carry out the task requested as part of the IRQ.
(IRQ) The method by which hardware devices request processor attention.
A request for attention and service made to the CPU. The keyboard and the serial and parallel ports all have interrupts. Setting two peripherals to the same IRQ is a cause of hair pulling among desktop PC users; laptops don't suffer the problem as badly because they have few, if any, add-on products that need interrupts set.