What is adder? Explain both of the adder (Half & Full) with proper circuit diagram and truth table.

Adder: Component of a computer processor that adds two numbers sent from the processing instructions. Adders are use not only for arithmetic logic units, but also in the other parts of the processor. They may use for calculating table index, address and many other logical work. Adders can be constructed for many numerical representation, such as binary-coded decimal or exces-3, the most common adders operate on binary numbers.

There are two types of adders:

- Half adder
- Full adder

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