McqMate
Q. |
I/O OBR (I/O Buffer register) is |
A. | Used for the exchange of data between an I/O module and the processor. |
B. | Specifies particular I/O device. |
C. | (A) and (B) both true. |
D. | (A) and (B) both false. |
Answer» A. Used for the exchange of data between an I/O module and the processor. |
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