Explain half-adder with truth-table and logic diagram, Computer Engineering

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What is a half-adder? Explain a half-adder with the help of truth-table and logic diagram.

Ans.
Half Adder: It is a logic circuit for the addition of two 1-bit numbers is termed  to as an half-adder. The process of addition is exemplified in truth table demonstrated in Table. There A and B are the two inputs and also S (SUM) and C (CARRY) are two outputs.

A

B

S

C

0

0

0

0

0

1

1

0

1

0

1

0

1

1

0

1

Truth Table for Half Adder

By the truth table, we get the logical expressions for S and C outputs that is
S = A B+A B
C = AB
An Half-adder logic diagram using gates is demonstrated in figure given below:

908_Explain half-adder with truth-table and logic diagram.png

Logic Diagram for an Half-adder


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