An adder is a digital circuit that performs addition of numbers. The half adder adds two binary digits called as augend and addend and produces two outputs as sum and **carry**; XOR is applied to both inputs to produce sum and AND gate is applied to both inputs to produce **carry**.

In respect to this, what is the function of a half adder?

The half adder is an **example** of a simple, functional digital circuit built from two logic gates. The half adder adds two one-bit binary numbers (AB). The **output** is the **sum** of the two bits (S) and the carry (C).

What is the function of a full adder?

A **full adder** is a logical circuit that performs an addition operation on three one-bit binary numbers. The **full adder** produces a sum of the three inputs and carry value. It can be combined with other **full adders** (see below) or work on its own.

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