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Medical Definition of CYBERNETICS. : the science of communication and control theory that is concerned especially with the comparative study of automatic control systems (as the nervous system and brain and mechanical-electrical communication systems).
There are three major sociology theories known as functionalism, conflict theory, and interactionist perspective. Symbolic interactionism is the use of symbols and is face-to-face interaction. Functionalism has to do with relationships between the parts of society and how the aspects of society are adaptive. The last, conflict theory is the competition of scarce resources and how the elite control the poor and week.