System

A system is said to be meaningful interconnection of group of independent but interrelated components working coherently to fulfill an objective. For example, an electric fan can be observed as system with its components

as stator, rotor, windings and blades etc. functioning for providing air as its objective.

A system may have a control element or not but can be called as a ‘system’.

There are numerous systems in the world such as drive systems of automobiles, computers, traffic signaling and satellites etc.