Q.

To overcome the lag in the operating speeds of the I/O device and the processor we use                         

A. buffer spaces
B. status flags
C. interrupt signals
D. exceptions
Answer» B. status flags
Explanation: the processor operating is much faster than that of the i/o devices, so by using the status flags the processor need not wait till the i/o operation is done. it can continue with its work until the status flag is set.
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