Control engineering
Control engineering' is the engineering field that focuses on mathematical modeling of systems of a various nature, analyzing their dynamic behavior, and using control theory to create a controller that will cause the systems to behave in a desired manner. Modern control engineering is closely related to electrical, electronic and computer engineering, as electronic circuits can often be easily explained using control theory techniques. And also it is related to biological unit. Control engineering needs Electrical circuits, antenna and very small control unit. And as engineering is developing, control engineering is often desired. For example, there are automobile, biologcal engineering, wireless communication, and etc.