virtual address space

virtual address space
виртуальное адресное пространство
диапазон виртуальных адресов, доступных процессу. Он начинается с адреса 0 и распространяется до максимального адреса. Таким образом, каждому процессу в виртуальной среде исполнения доступно всё адресное пространство ЦП. На 32-разрядных платформах, таких как IA-32, максимальный адрес равен 232-1 или 0ffffffffh, на 64-разрядных платформах, таких как IA-64, он равен - 264-1. Например, в Windows NT каждому процессу доступно уникальное виртуальное адресное пространство размером 4 Гбайт. Всё виртуальное адресное пространство делится на равные части, называемые виртуальными страницами (см. virtual page) или просто страницами

Англо-русский толковый словарь терминов и сокращений по ВТ, Интернету и программированию. . 1998-2007.

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  • Virtual address space — (abbreviated VAS) is a memory mapping mechanism available in modern operating systems such as OpenVMS, UNIX, Linux, and Windows NT.OverviewVirtual memory is easiest to comprehend if one thinks in terms of the VAS, and not the physical memory of… …   Wikipedia

  • Kernel virtual address space — The Kernel Virtual Address Space (KVA) is the virtual memory area in which all Linux kernel threads reside. The second part of the virtual address space is occupied by the User Virtual Address Space which contain user threads …   Wikipedia

  • Address space — In computing, an address space defines a range of discrete addresses, each of which may correspond to a physical or virtual memory register, a network host, peripheral device, disk sector or other logical or physical entity. A memory address… …   Wikipedia

  • Address space layout randomization — (ASLR) is a computer security technique which involves randomly arranging the positions of key data areas, usually including the base of the executable and position of libraries, heap, and stack, in a process s address space. Benefits Address… …   Wikipedia

  • Single address space operating system — In computer science, a single address space operating system (or SASOS) is a type of operating system with simple memory management which uses only one globally shared virtual address space. List of SASOS Projects * Angel * BMX *… …   Wikipedia

  • address space — noun A range of discrete addresses, all the address locations available in a particular, named, subset of a computers (virtual or real) memory …   Wiktionary

  • Virtual memory/rewrite — Virtual memory is a computer system technique that gives an application program the impression it has contiguous working memory, while in fact it is physically fragmented and may even overflow on to disk storage. Systems which use this technique… …   Wikipedia

  • Address Windowing Extensions — (AWE) is a Microsoft Windows Application Programming Interface that allows a 32 bit software application to access more physical memory than it has virtual address space. The process of mapping an application s virtual address space to physical… …   Wikipedia

  • Space (disambiguation) — Space is a framework from which we can quantify distances between objects or points. Space or spacing may also refer to:In science:* Outer space, the area beyond the limit of the Earth s atmosphere * a mathematical space is an informal term for… …   Wikipedia

  • Virtual memory — This article is about the computational technique. For the TBN game show, see Virtual Memory (game show). Virtual memory combines active RAM and inactive memory in disk form into a large range of contiguous addresses. In computing, virtual memory …   Wikipedia

  • Virtual private network — A virtual private network (VPN) is a computer network in which some of the links between nodes are carried by open connections or virtual circuits in some larger network (e.g., the Internet) instead of by physical wires. The link layer protocols… …   Wikipedia

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