Question

A full adder has

• A. \(2\) inputs and \(1\) output
• B. \(2\) inputs and \(2\) outputs
• C. \(3\) inputs and \(2\) outputs
• D. \(3\) inputs and \(1\) output

Hint:

A full adder has \[ \boxed{ 3\ \text{inputs }(A,B,C_{in}) \quad\text{and}\quad 2\ \text{outputs }(S,C_{out}). } \]

Answer 1

The Correct Option is C

Step 1: Recall the inputs of a full adder. A full adder adds three binary inputs: \[ A,\quad B,\quad C_{in}. \] Thus, it has \[ \boxed{3\ \text{inputs}.} \]

Step 2: Recall the outputs. A full adder produces - Sum \((S)\), - Carry \((C_{out})\). Hence, it has \[ \boxed{2\ \text{outputs}.} \] Therefore, \[ \boxed{(C)} \] is the correct answer.