Close Loop Control System ?

It is a system in which output is affected by the process input for desired output value maintaining purpose are called Close Loop Control System.
It is a system mostly used by user requires quick response with great accuracy for stability of the system. It works on the feedback, its output will not be stable but it will always try to stabilize it response.
The main reason for quicker response and accuracy is its automatic feedback system that informs the input that the desired movement has taken place. Upon this feedback information, the system stops the actuator. (E.g. Temperature controlling, Pressure Controlling loop, controlling, Flow Controlling, the position, the velocity controlling loops.)