What is 'adder' 🧑‍🔧

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And the quick answer is…

A circuit in which two or more signals are combined to give an output-signal amplitude that is proportional to the sum of the input-signal amplitudes.

As the name suggests, Adder is used to add binary numbers.

Adder circuit is basically a combinational logic circuit.

It is a memory less circuit and performs an operation assigned to it logically by a Boolean expression.

I have selected a few questions and answers to help you understand it:

'adder'

What are the different types of adder designs...

Other adder designs include the carry-select adder, conditional sum adder, carry-skip adder, and carry-complete adder. If an adding circuit is to compute the sum of three or more numbers, it can be advantageous to not propagate the carry result. Instead, three-input adder are used, generating two results: a sum and a carry.

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Note to self: Article (first draft) OK.