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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) ExceptionsThe question was posed to me in final exam.Question is from Accessing I/O Devices topic in division Input/Output Organisation of Computer Architecture

Answer»

Right option is (b) STATUS flags

To ELABORATE: 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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