Question

If memory access takes 20 ns with cache and 110 ns with out it, then the ratio ( cache uses a 10 ns memory) is

Answer 1

Answer:

If memory access takes 20 ns with cache and 110 ns with out it, then the ratio is 90%.

Explanation:

Memory access is a feature of computers. This feature allows the device to work on input and output, sending messages to directly to CPU. This speeds up the memory procedure of the device.

All this managed by a chip known as DMA Controller. The DMA channels are numbered from 0,1,2,3. They enable the device to transfer data without overloading it. It sends messages directly to peripheral device and the system memory.