Definitions for "Direct Memory Access"
Keywords:  dma, cpu, microprocessor, bus, irq
PCs have DMA channels that allow certain devices to directly access memory to speed up the process. In addition to IRQ settings, you used to have to worry...
A method of transferring data between a device and main memory without intervention by the CPU. DMA is handled by the device itself (bus-mastering or first-party DMA) or by a DMA controller chip in the system (slave or third-party DMA).
Shortened to DMA. A technique for providing rapid transfer of data between a storage device and computer memory without requiring processor intervention. Directory A special-purpose file containing details about other files stored on the same medium. Directories are commonly used for all types of storage media, including diskettes, hard disk drives, CD-ROM discs, and magneto-optical cartridges.