write 500+ words that respond to the following questions with your thoughts, ideas, and comments. Be

write 500+ words that respond to the following questions with your thoughts, ideas, and comments. Be substantive and clear, and use examples to reinforce your ideas.research on: Three principle I/O techniques:Programmed I/OInterrupt driven I/O system ODirect memory accessdebate on functioning of I/O modules, I/O commands and instructions and pros and cons of all the techniques.  Also, explain how the processor determines which device has initiated the interrupt.