The interface(s) that provide(s) I/0 transfer of data directly to and from the memory unit peripheral is/are termed as:

(A) DMA (Direct Memory Access)

(B) IOP (Input-Output Processor)

(C) Serial Interface

(D) Parallel Interface

1. A(A) Only
2. B(B) Only
3. C(A) and (B) Only
4. D(C) and (D) Only

Pick an option to check yourself, or open the answer below.

Show answer & explanation

Correct answer: C. (A) and (B) Only

Explanation

Both a DMA controller and an I/O processor transfer data directly between peripherals and memory without the CPU moving each word.