I don't need answer for a

(a) Distinguish between logical/virtual address and physical address. (2 points) (b) Describe how the translation from logical address to physical address works under paging based systems. (4 points) (c) Describe how the translation from logical address to physical address works under segmentation based systems. (3 points) (d) Who performs the translation from logical to physical address-the CPU or the OS? Why? (1 point)