File Page
In computer operating systems, paging is one of the memory-management schemes by which a computer can store and retrieve data from secondary storage for use in main memory. In the paging memory-management scheme, the operating system retrieves data from secondary storage in same-size blocks called pages. The main advantage of paging over memory segmentation is that it allows the physical address space of a process to be noncontiguous. Before paging came into use, systems had to fit whole programs into storage contiguously, which caused various storage and fragmentation problems.
Paging is an important part of virtual memory implementation in most contemporary general-purpose operating systems, allowing them to use disk storage for data that does not fit into physical random-access memory (RAM).
Read more about File Page: Overview, Thrashing, Sharing, Terminology, Performance, Tuning Swap Space Size, Reliability, Addressing Limits On 32-bit Hardware
Famous quotes containing the words file and/or page:
“A common and natural result of an undue respect for law is, that you may see a file of soldiers, colonel, captain, corporal, privates, powder-monkeys, and all, marching in admirable order over hill and dale to the wars, against their wills, ay, against their common sense and consciences, which makes it very steep marching indeed, and produces a palpitation of the heart.”
—Henry David Thoreau (1817–1862)
“I asked myself, “Is it going to prevent me from getting out of here? Is there a risk of death attached to it? Is it permanently disabling? Is it permanently disfiguring? Lastly, is it excruciating?” If it doesn’t fit one of those five categories, then it isn’t important.”
—Rhonda Cornum, United States Army Major. As quoted in Newsweek magazine, “Perspectives” page (July 13, 1992)