3) Consider a memory system with the following parameters: Ic= 50 ns Ce = 0.003 cents/bit Im = 1500 ns Cm = 0.00001 cents/bit a) What is the cost of 1 Mbyte of main memory? b) What is the cost of 1 Mbyte of main memory using cache memory technology? c) If the effective access time is 10% greater than the cache access time, what is the hit ratio H