I/O MODULE

1. List the three broad classifications of external and peripheral devices.
2. Why are peripherals not connected directly to the system bus?
3. What are the major functions of an I/O module?
4. List and briefly discuss the tasks involved during processor communication.
5. What is the difference between Memory-mapped I/O and Isolated I/O?
6. When a device interrupt occurs, how does the processor determine which device issued the interrupt?