Computer organization

If a CPU specified as 128-bit processor that deal with a memory with length 128 slots. What will be the size of MAR, MBR is: (1.5 Points) MAR = 128 bits, MBR = 128 bits MAR = 7 bits. MBR = 128 bits MAR = 128 bits, MBR = 7 bits MAR = 7 bits MBR = 121 bits 2 Suppose we have the following processes inside the memory: P3, P3, P4, P4, P3, P2, P4, P1, P2, P3 P4 P4, P2, P1 show the result of replacement algorithms: 1)Least Recently Used (LRU). 2)Least Frequently Used (LFU). 3)FIFO (2 points) Note: Assume the process denote for some instructions in memory like ADD 2007) assume the last process entered is P3 moster