Please explain

4. Consider a hypothetical 32-bit microprocessor having 32-bit instructions com- posed of two fields: the first byte contains the opcode and the remainder an im- mediate operand or and operand address. (a) What is the maximum directly addressable memory capacity (in bytes)? 32- 2 16M (b) Discuss the impact on the system speed if the microprocessor bus has (1) a 32-bit local address bus and a 16-bit local data bus, or try (2) a 16-bit local address bus and a 16-bit local data bus. (address)C2)