Information system

IS (Information system)  . It Is a application of computer based Information Technology (combination of hardware, software, infrastructure and trained personnel) used to facilitate planning, control, coordination and decision making in an organization.

Types of IS 

TRANSACTION PROCESSING SYSTEM (TPS)

DECISION SUPPORT SYSTEM (DSS)

EXECUTIVE SUPPORT SYSTEM (ESS)

MANAGEMENT INFORMATION SYSTEM (MIS)

OFFICE AUTOMATION SYSTEM (OAS)

EXPERT SUPPORT SYSTEM (ES)

OTHER IS (OFFICE SUPPORT SYSTEM, 

KNOWLEDGE WORK SYSTEM)

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