Information System

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An information system (IS)[1] - is any combination of information technology and people's activities that support operations, management and decision making.[2] In a very broad sense, the term information system is frequently used to refer to the interaction between people, processes, data and technology. In this sense, the term is used to refer not only to the information and communication technology (ICT) that an organization uses, but also to the way in which people interact with this technology in support of business processes. An information system (IS)[1] - is any combination of information technology and people's activities that support operations, management and decision making.[2] In a very broad sense, the term information system is frequently used to refer to the interaction between people, processes, data and technology. In this sense, the term is used to refer not only to the information and communication technology (ICT) that an organization uses, but also to the way in which people interact with this technology in support of business processes. Information systems (IS) is the study of complementary networks of hardware and software that people and organizations use to collect, filter, process, create, and distribute data.[1][2][3][4] The study bridgesbusiness and computer science using the theoretical foundations of information and computation to study various business models and related algorithmic processes within a computer science discipline.[5][6][7][8][9][10][11][12][13] Computer Information System(s) (CIS) is a field studying computers and algorithmic processes, including their principles, their software and hardware designs, their applications, and their impact on society[14][15][16] while IS emphasizes functionality over design.[17] The history of information systems coincides with the history of computer science that began long before the modern discipline of computer 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 ensure data integrity, and to improve the social effectiveness & efficiency of the whole process.[19] In general, information systems are focused upon processing information within organizations, especially within business enterprises, and sharing the benefits with modern society.[20] -------------------------------------------------

Types of information systems

A four level pyramid model of different types of Information Systems based on the different levels of hierarchy in an organization The 'classic' view of Information systems found in the textbooks[31] of the 1980s was of a pyramid of systems that reflected the hierarchy of the organization, usuallytransaction processing systems at the bottom of the pyramid, followed by management information systems, decision support systems and ending withexecutive information systems at the top. Although the pyramid model remains useful, since it was first formulated a number of new technologies have been developed and new categories of information systems have emerged, some of which no longer fit easily into the original pyramid model. the major role of the management of the plan. Some examples of such systems are:

* data warehouses
* enterprise resource planning
* enterprise systems
* expert systems
* geographic information system
* global information system
* office automation.
Computer-Based Information System is essentially a system of information using computer technology to carry out some or all of its planned tasks. Below is a list of the basic components of computer based information system. The first four are known as information technology components: Hardware- these are the devices like the monitor, processor, printer and keyboard, all of which work together to accept, process, show data and information. Software- are the...
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