memory protection

memory protection
защита памяти
аппаратные средства, обеспечивающие защиту адресного пространства одной задачи (процесса, ОС) от несанкционированного доступа другой. Существует три аспекта защиты памяти: изоляция системного ПО от пользовательского, межзадачная защита и проверка типов данных.

"What irritated me about the Sinclair QL was that while the operating system was capable of multitasking, you could still crash at any time because there was no memory protection" (Linus Torvalds). — B Sinclair QL меня особенно бесило то, что, хотя эта операционная система поддерживала мультизадачность, всё могло в любой момент рухнуть, потому что не было защиты памяти.

Syn:

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

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  • Memory protection — is a way to control memory access rights on a computer, and is a part of most modern operating systems. The main purpose of memory protection is to prevent a process from accessing memory that has not been allocated to it. This prevents a bug… …   Wikipedia

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  • Memory Protection Unit — Eine Memory Protection Unit (MPU, auch: Speicherschutzeinheit) wird in Mikrocontrollern eingesetzt, um den Zugriff auf Speicherbereiche einzuschränken, und damit die Daten im Speicher vor unberechtigten Zugriffen zu schützen. Siehe auch Memory… …   Deutsch Wikipedia

  • memory protection —    See storage protection …   IT glossary of terms, acronyms and abbreviations

  • Memory segmentation — is the division of computer memory into segments or sections. Segments or sections are also used in object files of compiled programs when they are linked together into a program image, or the image is loaded into memory. In a computer system… …   Wikipedia

  • Memory management — is the act of managing computer memory. The essential requirement of memory management is to provide ways to dynamically allocate portions of memory to programs at their request, and freeing it for reuse when no longer needed. This is critical to …   Wikipedia

  • Memory architecture — describes the methods used to implement electronic computer data storage in a manner that is a combination of the fastest, most reliable, most durable, and least expensive way to store and retrieve information. Depending on the specific… …   Wikipedia

  • Memory management unit — This 68451 MMU could be used with the Motorola 68010 A memory management unit (MMU), sometimes called paged memory management unit (PMMU), is a computer hardware component responsible for handling accesses to memory requested by the CPU. Its… …   Wikipedia

  • Memory Management Controller — Multi Memory Controllers or Memory Management Controllers[1] (MMC) are different kinds of special chips designed by various video game developers for use in Nintendo Entertainment System (NES) cartridges. These chips extended the capabilities of… …   Wikipedia

  • Memory corruption — happens when the contents of a memory location are unintentionally modified due to programming errors; this is known as violating memory safety. When the corrupted memory contents are used later in the computer program, it leads either to program …   Wikipedia

  • Memory Stick — This article is about Sony s proprietary memory format. For the mobile USB storage device, see USB flash drive. Memory Stick A 64 MB Sony Memory Stick Media type Flash Memory Card Capacity 4 MB to 256 GB (Maximum theoretical size:… …   Wikipedia


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