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A computer(-based) information system is essentially an IS using computer technology to carry out some or all of its planned tasks. 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.
Information System is the system of persons, data records and activities that process the data and information in a given organization, including manual processes or automated processes. Its purpose is to turn raw data into useful information that can be used for decision making in an organization.
An early such system was IBM's Information Management System (IMS), [40] which is still widely deployed more than 50 years later. [41] IMS stores data hierarchically, [40] but in the 1970s Ted Codd proposed an alternative relational storage model based on set theory and predicate logic and the familiar concepts of tables, rows, and columns.
The terms management information system (MIS), Information management system (IMS), information system (IS), enterprise resource planning (ERP), computer science, electrical computer engineering, and information technology management (IT) are often confused. MIS is a hierarchical subset of information systems.
The following outline is provided as an overview of and topical guide to information technology: . Information technology (IT) – microelectronics based combination of computing and telecommunications technology to treat information, including in the acquisition, processing, storage and dissemination of vocal, pictorial, textual and numerical information.
Computing has scientific, engineering, mathematical, technological, and social aspects. Major computing disciplines include computer engineering, computer science, cybersecurity, data science, information systems, information technology, and software engineering. [2] The term computing is also synonymous with counting and calculating.
Traditionally, executive information systems were mainframe computer-based programs.The purpose was to package a company's data and to provide sales performance or market research statistics for decision makers, such as, marketing directors, chief executive officer, who were not necessarily well acquainted with computers.
In computer security, general access control includes identification, authorization, authentication, access approval, and audit.A more narrow definition of access control would cover only access approval, whereby the system makes a decision to grant or reject an access request from an already authenticated subject, based on what the subject is authorized to access.
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