Control systems engineering first chapters are about RELEASE VALUE which means frequency response AND POSTERITY VALUE which means transient response. Every word either spoken with other/s and/or written for other/s has both FREQUENCY RESPONSE and TRANSIENT RESPONSE simultaneously. Control systems engg subject is king of all subjects.

"Control systems engineering" subject written by authors Beckwith & Buck even though needed to be taught in first year of engg course will be taught TACTICALLY in last year of engg course.
       Control systems engineering subject main stress is on NODES.