Paging

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 PagingOverview, Thrashing, Sharing, Terminology, Performance, Tuning Swap Space Size, Reliability, Addressing Limits On 32-bit Hardware

Other articles related to "paging":

Paging - Addressing Limits On 32-bit Hardware - Main Memory Larger Than Virtual Address Space
... Such systems often use paging techniques to obtain secondary benefits The "extra memory" can be used in the page cache to cache frequently used files and metadata, such as ... Paging allows the cumulative total of virtual address spaces to exceed physical main memory ...
Simple Network Paging Protocol
... Simple Network Paging Protocol (SNPP) is a protocol that defines a method by which a pager can receive a message over the Internet ... It is supported by most major paging providers, and serves as an alternative to the paging modems used by many telecommunications services ...
ERMES
... System) is a pan-European radio paging system ... Radio paging services depend on the allocation and availability of appropriate frequencies in order to transmit and receive between fixed-base stations and radio paging receivers respectively ...
Page Net - Financial Difficulties
... to offer advanced services, such as voice paging and two-way paging ... the weight of its investment, the one-way paging market collapsed—with millions of former paging customers switching to digital cellular and PCS services, which cut prices ...