2. Saket Mengle

3. Paging refers to the process of managing program access to virtual memory pages that do not currently reside in RAM.

4.  When a page has to be loaded, one of the existing pages must be swapped with the requested new page.  The paging system must determine the page to swap by choosing one based on an algorithm that determines the best choice: ◦ Least recently used ◦ Least frequently used ◦ Most Recently used

5. Virtual Page NumberPage Offset Page Table Main Memory

6.  Page Fault  Page Replacement  Invalid Page Fault

7. Any Questions Saket Mengle (smengle@ir.iit.edu)