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Match $\text{List I}$ with $\text{List II}$

$\begin{array}{llll} & \text{List I} & & \text{List II} \\ (A) &\text{Handshaking} & (I) & \text{I/O interface informs the CPU} \\ &&& \text{that device is ready for the transfer}  \\ (B) & \text{Programmed I/O} & (II) & \text{requires two control signals working} \\ &&& \text{in opposite directions} \\ (C) & \text{Interrupt-initiated I/O} & (III) & \text{has local memory & control large set} \\ &&& \text{of I/O devices}  \\ (D) & \text{I/O processor} & (IV) & \text{require CPU to check the I/O flag} \\ &&& \&\text{ perform transfer} \end{array}$

Choose the correct answer from the options given below:

  1. $A-I, B-II, C-III, D-IV$
  2. $A-II, B-IV, C-III, D-I$
  3. $A-II, B-IV, C-I, D-III$
  4. $A-IV, B-III, C-II, D-I$

 

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2 Answers

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Option c is correct.
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option c is correct answer.
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