Suppose a computer having 5 GHz processor with cycle time of 2ns and      main memory access time 100ns with CPI is 2 cycle. Calculate the processor performance without cache. Calculate the performance with L1 cache, assume L1 hit rate is 75% and access time is 1ns. Calculate the performance with L2 cache, assume L2 hit rate is 90% and access time is 5ns.

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Memory Size

A memory unit is the amount of data that can be stored in a storage unit. Some storage devices are RAM, hard drive, memory card, flash drive, etc. In the age of exponentially growing digital media, knowledge of how computer memory works is a key skill.