In 1948 Norbert Wiener defined the ”Cybernetics” in his book Cybernetics or control and communication in the Animal and the Machine. Later on it became part of GST.
The words Cybernetics is derived from the Greek noun, Kubernetes, which associates to pilot or rudder.
The essential feature of intelligent machine and human is that they must operate according to feedback-the control of a machine or man on the basis of its actual performance.
The black-box approach (Input-processing-output -feedback)