4 If EBX contains 1A2B3C4DH then what do the BX, BH and BL registers contain? .5 Imagine a pure four-bit computer with four-bit registers, four-bit addresses, a four-bit address bus and a four-bit data bus. If each location in memory held one byte, as is the Intel convention, what is the largest number of bytes of memory would such a computer could have? How many data transfers would it take to fill one memory location? .6 Imagine a pure 64-bit computer with 64-bit addresses and a 64-bit address bus. What is the largest number of bytes of memory this computer could have (theoretically!)