8. We pointed out that I/O buses do not need separate address lines. Construct a timing diagram similar to Figure 7.7 that describes the handshake between an I/O controller and a disk controller for a write operation. (Hint: You will need to add a control signal.)
The timing diagram for disk write operation is shown in the below figure:
The control signal can be either “error” or “ack.” so, we can add the control signal to the above diagram.