Open System: An Open System interacts with other systems in its environment. For example – Information system is an open system because it takes input from the environment and produces output to the environment, which changes as per the changes in the environment.
Closed System: Closed System does not interact with the environment and does not change with
the changes in environment. Consider a ‗throw-away‘ type sealed digital watch, which is a system, composed of a number of components that work in a cooperative fashion designed to perform some specific task. This watch is a closed system as it is completely isolated from its environment for its operation.