Boolean algebra can be determined logic gates and simplified them, so this logic is an important tool used in many of digital circuit.ReferencesHistory of logic gate.http://en.wikipedia.org/wiki/Logic_gate#History_and_developmentHistory of Boolean logic and ruleshttp://www.buzzle.com/articles/boolean-origination-history-and-origin-of-boolean-logic.htmlLogic gates introduction and examplesThe websi