Hi

I'm reading the basics of Hardware Interrupts. One of the statements that I did not understood was, Interrupt-driven devices like, keyboards, pointing devices, network cards etc allows the operating system to get the maximum use out of the processor by overlapping central processing with I/O operations.

What is overlapping central processing with I/O operations?

Why does overlapping central processing with I/O operations result in the maximum use of the processor?


Thanks