a. Explain what the CPU should do when an interrupt occurs. Include in your answer the method the CPU uses to detect an interrupt, how it is handled, and what happens when the interrupt has been...

a. Explain what the CPU should do when an interrupt occurs. Include in your answer the method the CPU uses to detect an interrupt, how it is handled, and what happens when the
interrupt has been serviced.
b. How many bits are required to address a 4M × 16 main memory if main memory is byte-addressable?
c. How many bits are required to address a 1M × 8 main memory if main memory is byte-addressable?
d. Explain the steps of the fetch-decode-execute cycle. Your explanation should include what is happening in the various registers.