1.1 Theory of Systems
The idea of a system is useful to explain both the external reality as well as the internal one. An Information System is simply an organized set of components that are coordinated to perform a designated function. All the components of the system are in some way related to each other and the functioning of the other components enhances the operation of the system.
Let us consider a simple example, such as a car, depicted in Figure 1.1: it is made up of an engine, wheels, brakes, and other related items. Every part plays a unique task, but collectively they are responsible for making the car move. Likewise, every computer, organism, machine, or device has components that work together to achieve an outcome.
Figure 1.1: System of a Car