disk direct memory access

disk direct memory access
прямой доступ к памяти на дисках

Англо-русский словарь компьютерных и интернет терминов. 2013.

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  • Direct memory access — (DMA) is a feature of modern computers that allows certain hardware subsystems within the computer to access system memory independently of the central processing unit (CPU). Without DMA, the CPU using programmed input/output is typically fully… …   Wikipedia

  • direct memory access —    Abbreviated DMA. A method of transferring information directly from a mass storage device, such as a hard disk, into memory without the information passing through the processor. Because the processor is not involved in the transfer, DMA is… …   Dictionary of networking

  • Memory virtualization — In computer science, memory virtualization decouples volatile random access memory (RAM) resources from individual systems in the data center, and then aggregates those resources into a virtualized memory pool available to any computer in the… …   Wikipedia

  • Disk-drive performance characteristics — are the attributes which control the time it takes to transfer (read or write) data between a computer and a data storage device (most typically disk storage) starting with the initial command from the computer or host until the storage device… …   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

  • Access method — An access method is a function of a mainframe operating system that enables access to data on disk, tape or other external devices. They were introduced in 1963 in IBM OS/360 operating system. [http://researchweb.watson.ibm.com/journal/rd/255/ausl… …   Wikipedia

  • Hard disk drive — Hard drive redirects here. For other uses, see Hard drive (disambiguation). Hard disk drive Mechanical interior of a modern hard disk drive Date invented 24 December 1954 [1] …   Wikipedia

  • Solid State Disk — Ein Solid State Drive (SSD, dt. Festkörperlaufwerk), auch Solid State Disk (dt. Festkörperplatte) genannt, ist ein Speichermedium, das wie eine herkömmliche Festplatte eingebaut und angesprochen werden kann, ohne eine rotierende Scheibe oder… …   Deutsch 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

  • Floppy disk controller — A floppy disk controller (FDC) is a special purpose chip and associated disk controller circuitry that directs and controls reading from and writing to a computer s floppy disk drive (FDD). This article contains concepts common to FDCs based on… …   Wikipedia

  • Direct access storage device — In mainframe computers and some minicomputers, a direct access storage device, or DASD (  /ˈdæ …   Wikipedia


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