Swapping Many background server processes run in the system Physical memory not large enough to hold all programs a Swapping Bring in and swap out programs a virtual memory Run programs even when they are partially in memorySwapping ◼ Many background server processes run in the system ◼ Physical memory not large enough to hold all programs ❑ Swapping ◼ Bring in and swap out programs ❑ Virtual memory ◼ Run programs even when they are partially in memory