memory descriptor

memory descriptor
дескриптор памяти

English-Russian electronics dictionary .

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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

  • Descriptor — may refer to file descriptor, an abstract key for accessing a file index term, also known as a descriptor in information retrieval molecular descriptor, which helps characterize a chemical compound segment descriptor, used for memory addressing… …   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-mapped file — A memory mapped file is a segment of virtual memory which has been assigned a direct byte for byte correlation with some portion of a file or file like resource. This resource is typically a file that is physically present on disk, but can also… …   Wikipedia

  • MEMORY — holocaust literature in european languages historiography of the holocaust holocaust studies Documentation, Education, and Resource Centers memorials and monuments museums film survivor testimonies Holocaust Literature in European Languages The… …   Encyclopedia of Judaism

  • X86 memory segmentation — refers to the implementation of memory segmentation on the x86 architecture. Memory is divided into portions that may be addressed by a single index register without changing a 16 bit segment selector. In real mode or V86 mode, a segment is… …   Wikipedia

  • Local Descriptor Table — The Local Descriptor Table (LDT) is a memory table used in the x86 architecture in protected mode and containing memory segment descriptors: start in linear memory, size, executability, writability, access privilege, actual presence in memory,… …   Wikipedia

  • Global Descriptor Table — The Global Descriptor Table or GDT is a data structure used by Intel x86 family processors starting with the 80286 in order to define the characteristics of the various memory areas used during program execution, for example the base address, the …   Wikipedia

  • Interrupt descriptor table — The Interrupt Descriptor Table (IDT) is a data structure used by the x86 architecture to implement an interrupt vector table. The IDT is used by the processor to determine the correct response to interrupts and exceptions.The details in the… …   Wikipedia

  • Extended memory — In computing, Extended memory refers to memory above the first megabyte of address space in an IBM PC with an 80286 or later processor. OverviewOn x86 based PCs, extended memory is only available with an Intel 80286 processor or higher. Only… …   Wikipedia

  • Segment descriptor — In memory addressing for Intel x86 computer architectures, segment descriptors are a part of the segmentation unit, used for translating a logical address to linear address. Segment descriptors describe the memory segment referred in the logical… …   Wikipedia


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