paging
n.n. the process of moving data between a computer's main memory and a slower storage device. It helps the computer run faster by keeping only the most important information in the main memory.
n. the process of transferring data between a computer's main memory and secondary storage. This allows the operating system to manage memory more efficiently by swapping out less frequently used data to disk.
The system uses paging to manage memory when the computer runs out of RAM.
If your computer is paging frequently, it might be because you have too many programs open at once.
Modern operating systems implement sophisticated paging algorithms to minimize the performance overhead associated with swapping data between the high-speed cache and the slower hard drive.