In the most simple computer system architecture ... making the system grind to a halt until the transfer completed. DMA (Direct Memory Access) frees the CPU from these menial tasks.

Direct Memory Access (DMA) was introduced later ... RAM access is but one type of interrupt in traditional computer architecture. In general the more busses and interrupts, the more performance ...

Traditional hardware and software architecture ... Remote Direct Memory Access (RDMA) is a network interface card (NIC) feature that lets one computer directly place information into the memory ...