What are the particular hardware elements that have a direct memory access device?

Question

I need to know what are the particular hardware elements that have a direct memory access device and if possible a good explination

Answer 1

The CPU is the main component that has direct memory access. The Platform controller, or northbridge also has direct access to the memory. Some newer systems support DMA or direct memory access. This allows the disk drives, graphics cards, network cards, sound cards, and other components to have direct memory access without going through the CPU.