[PDF] Présentation générale. Data & Information System

What is information system?

INFORMATION SYSTEMS Overview Information Systems and Management An Introduction to Information Systems Information System: An information system is a set of interrelated components that collect, manipulate, store data and disseminate information and provide a feedback mechanism to monitor performance. What is an Information System?

What are the components of a computer based information system?

The basic components of computer-based information systems are: Hardware 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 programs that allow the hardware to process the data.

What is information systems & data processing?

An emphasis is placed on an information system having a definitive boundary, users, processors, storage, inputs, outputs and the aforementioned communication networks. In many organizations, the department or unit responsible for information systems and data processing is known as " information services ".

What is a 'classic' view of Information Systems?

The "classic" view of Information systems found in textbooks in the 1980s was a pyramid of systems that reflected the hierarchy of the organization, usually transaction processing systems at the bottom of the pyramid, followed by management information systems, decision support systems, and ending with executive information systems at the top.