文档介绍：An information system (IS) is bination of information technology and people's activities using that technology to support operations, management, and decision-making.
In a very broad sense, the term information system is frequently used to refer to the interaction between people, algorithmic processes, data and technology
.
As illustrated by the Venn Diagram on the right, the history of information systems coincides with the history puter science that began long before the modern discipline puter science emerged in the twentieth century.[18] Regarding the circulation of information and ideas, numerous legacy information systems still exist today that are continuously updated to promote ethnographic approaches, to ensuredata integrity, and to improve the social effectiveness & efficiency of the whole process.[19] In general, information systems are focused upon processing information anizations, especially within business enterprises, and sharing the benefits with modern society
In this sense, the term is used to refer not only to the information munication technology (ICT) anization uses, but also to the way in which people interact with
this technology in support of business processes.[3]
Some make a clear distinction between information systems, puter systems ICT, and business processes. Information systems are distinct from information technology in that an information system is typically seen as having an ponent. Information systems are also different from business processes. Information systems help to control the performance of business processes.[
Information systems are the primary focus of study for the information systems discipline and anisational informatics It consists puters, instructions, stored facts, people and procedures.
ISs can be categorized in three parts:
Management Information System (MIS).
Decision Support System (DSS).
Executive Information System (EIS)
Transaction processing system ( TPS )
Types of information systems
The