disk+memory+access

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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

• memory access — noun (computer science) the operation of reading or writing stored information • Syn: ↑access • Derivationally related forms: ↑access (for: ↑access) • Topics: ↑ …   Useful english dictionary

• 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 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

• 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-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 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 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 partitioning — GParted is a popular utility used for disk partitioning Disk partitioning is the act of dividing a hard disk drive into multiple logical storage units referred to as partitions, to treat one physical disk drive as if it were multiple disks.… …   Wikipedia

• Memory card — Miniaturization is evident in memory card creation; over time, the physical card sizes grow smaller. A memory card or flash card is an electronic flash memory data storage device used for storing digital information. They are commonly used in… …   Wikipedia

• access time —    The period of time that elapses between a request for information from disk or memory and the arrival of that information at the requesting device.    Memory access time refers to the time it takes to transfer a character between memory and… …   Dictionary of networking