4- (6 points) In a computer with 32-bit data-bus, how many 4-bit wide memory components is used? If the size of each 4-bit memory component is 4 x n cells where n - 1G (i.e., 4 x n uniquely addressable locations-n : row, 4 : column/width), what is the total capacity of the memory system? Show your answer in power of 2. (hint: 1000 210)