Definition of demand paging in English English dictionary
A method by which code and data are moved in pages from physical memory to a temporary paging file on disk
A memory management system that allows unused portions of a program to be stored temporarily on disk to make room for urgently needed information in main memory With demand paging, the virtual size of a process can exceed the amount of physical memory available in a system
the ability of a user program to request a page by referencing a data value in the page The operating system automatically makes the page visible by loading the page, if necessary, and adjusting the process paging table
A refinement of paging in which it is not necessary to load in the entire contents of the text and data segments of a program from disk when the process is started Instead, pages are brought into memory as they are accessed Demand paging is enabled by hardware features of the 80386 and 80486 processors that are supported by the operating system
An operating-system facility that brings pages of data from disk into physical memory only as they are needed
(n ) A page transfer that enables a program's required area to be noncontiguous and partially nonresident This permits the maximum use of a system's total available memory by enabling the computer system to execute programs that are larger than the allocated physical main memory within the processor