Paging is a memory allocation method that is used by many different operating systems. Paging is constructed by arranging physical memory and logical memory into fixed-size blocks. For physical memory these blocks are referred to as Frames, and for logical memory they are referred to as Pages. When a program from the backing store is executed and loaded into memory an available frame and page are allocated to that job. The logical use of pages allows a full 64-bit address to be added to the job but only taking up a fraction of the physical space that would be required. Paging can be vastly complicated and there are several different types of paging that allow for different types of priorities on jobs being executed.
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