1.

Match List I with List IIList IList II(A) Handshaking(I) I/O interface informs the CPU that device is ready for transfer(B) Programmed I/O(II) requires two control signals working in opposite directions(C) Interrupt-initiated I/O(III) has local memory & control large set of I/O devices.(D) I/O processor(IV) require CPU to check the I/O flag & perform transfer Choose the correct answer from the options given below:

A. A - I, B - II, C - 10, D - IV
B. A - II, B - IV, C - III, D - I
C. A - II, B - IV, C - I, D - III
D. A - IV, B - III, C - II, D - I
Answer» D. A - IV, B - III, C - II, D - I


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