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Match the following for operating system techniques with the most appropriate advantage :

$\begin{array}{clcl}  & \textbf{List-I} && \textbf{List-II}\\ \text{(a)} & \text{Spooling} & \text{(i)} & \text{Allows several jobs to improve CPU utilization} \\ \text{(b)} & \text{Multiprogramming} & \text{(ii)}& \text{Access to shared resources among geographically}\\ &&& \text{dispersed computers in a transparant way} \\ \text{(c)}  & \text{Time sharing} & \text{(iii)} & \text{Overlapping I/O and computations} \\ \text{(d)} & \text{Distributed computing}& \text{(iv)} & \text{Allows many users to share a computer} \\ &&& \text{simultaneously by switching processor frequently}   \\ \end{array}$

$\textbf{Codes :}$

  1. $\text{(a)-(iii), (b)-(i), (c)-(ii), (d)-(iv)}$
  2. $\text{(a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)}$
  3. $\text{(a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)}$
  4. $\text{(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)}$
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   Ans is B

  Spooling- -----      --iii. Overlapping I/O and computations

  Multiprogramming--- Allows several jobs in memory to improve CPU utilization

Time sharing---Allows many users to share a computer simultaneously by switching processor frequently

Distributed computing---Access to shared resources among geographically dispersed computers in a transparent way

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