Answer:
Virtual memory
Explanation:
The RAM is the main/primary memory of the computer because its data is easily accessible when needed by the computer while the hard drive/hard disk is the secondary memory/permanent memory of the system.
The Virtual memory is a memory management capability of a system that allows the transfer of data from the main memory which is the Ram to a secondary memory like the hard drive. this is mostly done when the Ram is running low on space and probably slowing the system down.
