(b) Compare and contrast the different memory technologies (SRAM, DRAM, Flash and magnetic disk) used in a memory hierarchy with respect to cost, size, access ime and power consumption (c) Explain the concept of locality of reference by providing examples and state its importance to memory systems. (d) Assume that both the arrays (A & B) are of same size and are stored contiguously. I and N are scalar variables. In the code identify variables which exhibit temporal locality and variables which exhibit spatial locality. Provide justification for your answer to get full credit. for (I-0; 1 n; I++)