A sensor is something that responds to things such as light, movement, heat and more!
ADC is an essential avionics component found in modern glass cockpits
An Actuator is a type of motor for moving or controlling a mechanism or system. It is operated by a source of energy, typically electric current.
Control System is a device, or set of devices, that manages, commands, directs or regulates the behavior of other devices or systems.
An Open Loop is a control system that does not have a feedback loop and thus is not self-correcting.
Feedback is a process in which information about the past or the present influences the same Phonomonom in the present or future. As part of a chain of cause and effect that forms a circuit or loop, the event is said to "feed back" into itself.