Answer from cs61c-aq (Anjali Jagannatha Koppal 16454392) for Question 1
Understanding and implementing an instruction given to it has been made very easy for the processor. It inputs an instruction address, which is just a register's address, and looks up the value in the address and performs the necessary operation. this method is very effcient in terms of time as well as straight-forwardness, ensuring no scope for errors.