Common Functions of Interrupts.

1. nInterrupt transfers control to the interrupt service routine generally, through the interrupt vector, which contains the addresses of all the service routines

2. nInterrupt architecture must save the address of the interrupted instruction

3. nIncoming interrupts are disabled while another interrupt is being processed to prevent a lost interrupt

4. nA trap is a software-generated interrupt caused either by an error or a user request

5. nAn operating system is interrupt driven