A system can be closed or opened. According to General Systems Theory, in an open system All elements are separate and independent of each other, there is no boundary separating the system from its environment, Additional inputs can be accepted from its environment and There are no output to be dispersed into the environment.
A system is known to be refered to as a group of units or elements interacting together based on a common purpose.
The units or elements of a system can be said to be wires, people, computers, and so on.
Conclusively, In Open systems, the systems interact with other systems or the outside environment, but in closed systems, the systems does have little interaction with other systems or the outside environment.
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