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Match the following :

$\begin{array}{clcl}  & \textbf{List-I} && \textbf{List-II} \\ \text{a.} & \text{Controlled inverter} & \text{i.} & \text{a circuit that can add 3 bits} \\ \text{b.} & \text{Full adder} & \text{ii.} & \text{a circuit that can add two binary numbers} \\ \text{c.} & \text{Half adder} & \text{iii.} & \text{a circuit that transmits a binary word or} \\ &&& \text{its 1’s complement} \\ \text{d.} & \text{Binary adder} & \text{iv.} & \text{a logic circuit that adds 2 bits} \\  \end{array}$

$\textbf{Codes :}$

  1. $\text{a-iii, b-ii, c-iv, d-i}$
  2. $\text{a-ii, b-iv, c-i, d-ii}$
  3. $\text{a-iii, b-iv, c-i, d-ii}$
  4. $\text{a-iii, b-i, c-iv, d-ii}$
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Half adder->used to add 2 bits

Full adder->used to add 3 bits

controlled inverter-> a circuit that transmits a binary word or its 1’s complement

Binary adder ->used to add 2 binary numbers

Hence ans is D

The controlled buffer and inverter, often called three-state buffers/inverters, each have a one-bit "control" input pin on the south side. The value at this control pin affects how the component behaves:

  • When the value on this pin is 1, then the component behaves just like the respective component (a buffer or a inverter (NOT gate)).
  • When the value is 0 or unknown (i.e., floating), then the component's output is also floating.
  • When the value is an error value (such as would occur when two conflicting values are being fed into the input), then the output is an error value.
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