A+ Certification/Exam Objectives/Hardware/Basics/Storage/Hard disk drive/DMA

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DMA stands for Direct Memory Access. It is a method used to send and or receive information that is not under the control of a CPU. DMA channel availability is as follows:

  • 0-Available
  • 1-Sound Device
  • 2-Floppy Disk Controller
  • 3-Available
  • 4-DMA controller
  • 5-Available
  • 6-Available
  • 7-Available