Question

n a computer, we have primary memory that accesses the processor directly and secondary memory for permanent storage of data. Then why do we need cache memory? Explain in detail

Answer 1

Answer:

In primary memory we have cache memory. cache memory is repeated application are available.it is expensive and it is very small. it capacity 250Gb and in primary memory we have main memory also in that we have ram and rom in ram we have sram and dram and in rom we have prom eprom and eerom

Answer 2

Explanation:

The purpose of cache memory is to store program instructions and data which are used repeatedly in the operation of programs or information that the CPU is likely to need next. The computer processor can access this information quickly from the cache rather than having to get it from computer's main memory.