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direct memory access

   Also found in: Acronyms, Encyclopedia, Wikipedia 0.01 sec.

direct memory access

In computing, a technique used for transferring data to and from external devices without going through the central processing unit (CPU) and thus speeding up transfer rates. DMA is used for devices such as scanners.


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11 medium access controller (MAC) enhancements, the Am1772 wireless chipset is a Complementary Metal-Oxide Semiconductor (CMOS) solution that utilizes baseband processor and a MAC, with a descriptor-based direct memory access (DMA) host interface.
Parallel databases, including Oracle Parallel Server, IBM DB2 UDB EEE, and Microsoft SQL Server 2000 were early adopters of VI, exploiting the benefits of direct memory access.
One reader features a new and unique industrial design and is fully compatible with two new flash card interface standards: Ultra Direct Memory Access (UDMA) CompactFlash([R]), a high-performance flash memory protocol based on the CompactFlash form factor, and Secure Digital High Capacity (SDHC[TM]), a memory standard that supports capacities of 4GB and higher in the Secure Digital (SD[TM]) form factor.
 
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