1 votes 1 votes DMA interface unit eliminates the need to use CPU registers to transfers data from (a) MAR to MBR (b) MBR to MAR (c) I/O units to memory (d) Memory to I/O units CO and Architecture co-and-architecture dma + – Sunil8860 asked Aug 8, 2017 retagged Nov 13, 2017 by Arjun Sunil8860 3.1k views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
5 votes 5 votes Both option C and D should be Correct Answer . DMA interface unit eliminates the need to use CPU registers to transfer data from Memory to I/O units or vice versa. Shubham Sharma 2 answered Aug 8, 2017 Shubham Sharma 2 comment Share Follow See all 0 reply Please log in or register to add a comment.
0 votes 0 votes Computers that have DMA channels can transfer data to and from devices with much less CPU overhead than computers without DMA channels. Both C and D are correct. https://en.wikipedia.org/wiki/Direct_memory_access. Please read the second last sentence of the second paragraph. Abhilash Behera answered Oct 31, 2020 Abhilash Behera comment Share Follow See all 0 reply Please log in or register to add a comment.