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

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