| 释义 |
direct memory access
direct memory access n (Computer Science) a process in which data may be moved directly to or from the main memory of a computer system by operations not under the control of the central processing unit. Abbreviation: DMA Direct Memory Access
direct memory access[də¦rekt ¦mem·rē ′ak‚ses] (computer science) The use of special hardware for direct transfer of data to or from memory to minimize the interruptions caused by program-controlled data transfers. Abbreviated dma. Direct Memory Access (architecture)(DMA) A facility of some architectures whichallows a peripheral to read and write memory withoutintervention by the CPU. DMA is a limited form of bus mastering.AcronymsSeeDMA |