BASIC LOGIC GATES
In studying digital in integrated circuits, one must start with the simples group of circuits, the SSIs or Small Scale Integrated Circuits. Since this devices contain only a maximum of 10 transistorized components inside, these chips normally contain a function used in Boolean Algebra. Switching functions using Boolean Algebra is the simplest operation used in digital circuits, since it only involves a zero (0) and a one (1), much like the false (if zero) and true (if one) signals of Boolean algebra.