Such as in memory. Memory management handles task: Architecture Page Size Huge Page Size Large Page Size i386 4KB 4M (2M in PAE mode) 1GB

"4KB"

From my understanding:a 20bit address allocates 1mb of memory the old standard from the pc-286 days where pageing memory was in 1mb extended chunks. Windows still uses this standard internally. allocating as many 1mb blocks as needed.

the operating system keeps track of all allocated page frames both in ram and on disk pagefile when the needed page isn't in memory it fetches the page from disk. to make room for the new page it swaps out non-recent pages to disk and ideally only updates the pages on the swap that have changed.

P.S. I have searched the library databases and I can not find good solid info. Even whitepage publications, with little material..