翻訳と辞書 Words near each other ・ Virtual Studios ・ Virtual surround ・ Virtual Switch Redundancy Protocol ・ Virtual Switching Instance ・ Virtual synchrony ・ Virtual tape library ・ Virtual tax ・ Virtual Magic Kingdom ・ Virtual Magnifying Glass ・ Virtual maintenance training ・ Virtual management ・ Virtual manipulatives for mathematics ・ Virtual manufacturing network ・ Virtual Medical Record ・ Virtual Melton ・ Virtual memory ・ Virtual memory compression ・ Virtual method table ・ Virtual metrology ・ Virtual microscope ・ Virtual microscopy ・ Virtual military ・ Virtual minefield ・ Virtual mixer ・ Virtual mobility ・ Virtual Murder ・ Virtual museum ・ Virtual Museum of Canada ・ Virtual Museum of Computing ・ Virtual Museum of Modern Nigerian Art Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Virtual memory ： ウィキペディア英語版 Virtual memory In computing, virtual memory is a memory management technique that is implemented using both hardware and software. It maps memory addresses used by a program, called ''virtual addresses'', into ''physical addresses'' in computer memory. Main storage as seen by a process or task appears as a contiguous address space or collection of contiguous segments. The operating system manages virtual address spaces and the assignment of real memory to virtual memory. Address translation hardware in the CPU, often referred to as a memory management unit or ''MMU'', automatically translates virtual addresses to physical addresses. Software within the operating system may extend these capabilities to provide a virtual address space that can exceed the capacity of real memory and thus reference more memory than is physically present in the computer. The primary benefits of virtual memory include freeing applications from having to manage a shared memory space, increased security due to memory isolation, and being able to conceptually use more memory than might be physically available, using the technique of paging. == Properties == Virtual memory makes application programming easier by hiding fragmentation of physical memory; by delegating to the kernel the burden of managing the memory hierarchy (eliminating the need for the program to handle overlays explicitly); and, when each process is run in its own dedicated address space, by obviating the need to relocate program code or to access memory with relative addressing. Memory virtualization can be considered a generalization of the concept of virtual memory. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Virtual memory」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.