DMA
From openSUSE
Direct memory access (DMA) is a feature of modern computers, that allows certain hardware subsystems within the computer to access system memory for reading and/or writing independently of the central processing unit. It is an essential for all modern computers, as it allows devices to transfer data while CPU is doing something else.
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References
- Direct Memory Access article on Wikipedia.
- DMA in more details on pcguide.com.

