Being Learner

  DMA (Direct Memory Access) DMA stands for “Direct Memory Access” it is a method of transferring data from the computer’s random access memory RAM to another part of the computer without processing it using the CPU central processing unit. While most data that is I/O from the computer is processed by (central processing unit) CPU, some data doesn’t require processing, or can be processed by another device. In these, direct memory access can save processing time and is more efficient way to move data from the computer’s memory to other devices. For instance, the sound card may need to access data stored in the computer’s RAM, but since it can process the data itself, it may use direct memory access to bypass the CPU. The video cards that support direct memory access can also access the system memory & process graphics without needing the central processing unit. The ultra DMA hard devices use direct memory access to transfer the data faster than previous hard drives tha...