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direct memory access

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 DMA
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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direct memory access in Technology

(DMA) A facility of some architectures which allows a peripheral to read and write memory without intervention by the CPU. DMA is a limited form of bus mastering.

The Free On-line Dictionary of Computing, © Denis Howe 2010
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