Virtually all computers provide a mechanism by which other modules (I/O, memory) may interrupt the normal sequencing of the processor. Most common classes of interrupts.

Program: Generated by some condition that occurs as a result of an instruction execution, such as arithmetic overflow, division by zero, attempt to execute an illegal machine instruction, and reference outside a user's allowed memory space.

Timer: Generated by a timer within the processor. This allows the operating system to perform certain functions on a regular basis.

I/O: Generated by an I/O controller, to signal normal completion of an operation or to signal a variety of error conditions.

Hardware failure: Generated by a failure, such as power failure or memory parity error.

Interrupts are provided primarily as a way to improve processor utilization.

Write an example for which the use of interrupt is enhances the utilization of processor. and please explain it