Techniques for performing I/O :

A. Programmed I/O

B. Interrupt-driven I/O

C. Rotational I/O

D. Direct memory access

E. Channelized I/O

1. AA and C Only
2. BA, B, and D Only
3. CA, D and E Only
4. DB and E Only

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

Show answer & explanation

Correct answer: B. A, B, and D Only

Explanation

The three I/O techniques are programmed I/O, interrupt-driven I/O and direct memory access.