Execute (Load AC, x) phase (with fetch operand) 3. What kinds of registers are dealing with interface between Processor and memory Units. Computer A: clock rate=1.5GHz, to execute a code the CPU time = 9s We need to design a new computer B which executes the same code in: CPU time - 4s, and 1.3 x clock cycles of computer A What is the clock rate required for computer B ? s Explain the buses: data bus and address bus. For a memory with 2n capacity, what is the size (number of bits) of the address bus