Question: Question 2 A three level cache computer has main memory access time 800ns, first, second and third level cache access time 300ns, 250ns and 180ns

Question 2

A three level cache computer has main memory access time 800ns, first, second and third level cache access time 300ns, 250ns and 180ns respectively. If the hit ratio of the first, second and third cache are respectively 0.7, 0.5 and 0.3.

(a) Find the Average Access time AN (8)

(b) If cache 3 goes down, but it does not affect the operation of the computer in any way, compute the new average access time the computer. EV (7)

(c) Discuss the Computer system Structure and with the aid of a diagram explain the main components of the computer system.

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