which of the following memory has the shortest access time?
- Virtual memory
- Cache memory
- External memory
When I try to select the correct answer, I feel like it must be cache memory but answer is Register. Is it so? Please explain me more.
Register memory is build into the CPU, so it is the closest to the point of access with the lowest amounts of latency.
There is a fairly good summary/article of that from the same page as the image if from. Source