An information system can be defined technically as a set of interrelated components that collect, process, store, and distribute information to support decision making and control in an organization. In addition, it may also help workers and managers to analyze problems, visualize complex subjects, and create new products. The information contained is about people, places, and things within the organization or in the environment surrounding it.
Information systems have been playing a larger role in the life of organizations. In the 1950s, the systems brought about largely easy to accomplish technical changes. Later the systems affected managerial control and behaviour and subsequently core institutional activities. Since around 1995, described as the digital firm era, information systems extend far beyond to boundaries of the firm to encompass vendors, customers, and even competitors.
