half-adder

half-adder

[¦haf ¦ad·ər]
(electronics)
A logic element which operates on two binary digits (but no carry digits) from a preceding stage, producing as output a sum digit and a carry digit.

half-adder

An elementary electronic circuit in the ALU that adds one bit to another, deriving a result bit and a carry bit.
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The authors demonstrate this important concept with the half-adder described in the report, and moreover, show these devices operate with substantial gain, which is needed for highly integrated structures.