is called a half-adder. A full-adder is when the carry from the previous operation is provided as input to the next adder. Thus, a truth table of eight rows would be needed to describe a full adder's logic:

A B C* | C R0 0 0  | 0 00 1 0  | 0 11 0 0  | 0 11 1 0  | 1 00 0 1  | 0 10 1 1  | 1 01 0 1  | 1 01 1 1  | 1 1

Same as previous, but..C* = Carry from previous adder

Methods of writing truth tables

Regarding the guide columns to the left of a table, which represent

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