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A combination of Hardware Software Infrastructure and Trained personnelorganized to facilitate Planning Control Coordination and Decision Makingin an organization.
Executive Support System (ESS) Management Information System (MIS) Decision Support System (DSS) Knowledge Management System (KMS) Transaction Processing System (TPS) Office Automation System (OAS)
An Executive Support System ("ESS") isdesigned to help senior management makestrategic decisions.
A management information system(“MIS”) is mainly concerned with internalsources of information and summarizes itinto a series of management reports.
Decision-support systems ("DSS") arespecifically designed to help managementmake decisions in situations where there isuncertainty about the possible outcomes ofthose decisions.
Knowledge Management Systems ("KMS")exist to help businesses create and shareinformation.
Transaction Processing Systems ("TPS") aredesigned to process routine transactionsefficiently and accurately.
Office Automation Systems are systems thattry to improve the productivity of employeewho need to process data and information.
Basically there are 5 components available.HardwareSoftwareDataProceduresPeople
The term hardware refers to machinery.This category includes the computeritself, which is often referred to as thecentral processing unit (CPU), and all of itssupport equipments.
The term software refers to computerprograms and the manuals (if any) thatsupport them.
Data are facts that are used by programs toproduce useful information.
Procedures are the policies that govern theoperation of a computer system.
People mean the end user of the Systems.Every CBIS (Computer Based InformationSystem) needs people if it is to be useful.
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My class Lecture #2 about Introduction to Information System