Which of the following memories has the shortest access time?

Cache memory has the shortest access time among these, sitting closest to the processor.

Magnetic bubble memory is a slow older technology with far longer access time.

Magnetic core memory is an obsolete type much slower than cache.

RAM is fast but still slower to reach than cache.

Cache holds recently used data so the processor need not wait for main memory.

Access time generally shortens as memory moves nearer the CPU.