is a crucial concept in modern computer systems, providing a way for programs to access more memory than physically available. is a key component of virtual memory, where the system divides memory into fixed-size blocks called pages. The keeps track of the mapping between virtual and physical addresses, allowing for efficient memory management.
s occur when a program tries to access a page that is not currently in physical memory. This triggers the system to bring the required page from disk into memory, using to temporarily store pages that do not fit into physical memory. s in physical memory are used to store pages, with the helping to speed up the mapping process.
is the process of associating a file with a range of memory addresses, allowing it to be accessed as if it were part of the computer's memory. However, if the system spends too much time swapping pages in and out of memory due to high demand, can occur, severely impacting performance. Overall, the efficient management of virtual memory through techniques such as paging and using the translation lookaside buffer is essential for optimal system performance.
