السبت، 22 ديسمبر 2012

Types of Information Systems

Computer-based information systems (CBIS) use computer technology to perform some or all of their tasks and are composed of:


Hardware is a device such as a processor, monitor, keyboard or printer.
Software is a program or collection of programs that enable hardware to process data.
Database is a collection of related files or tables containing data.
Network is a connecting that permits different computers to share resources.
Procedures are the set of instructions about how to combine the above components in order to process information and generate the desired output.
People are those individuals who use the hardware and software, interface with it, or uses its output.
An application program is a computer program designed to support a specific task, a business process or another application program.
Breadth of Support of Information Systems
Functional area information systems support particular functional areas in an organization.
Enterprise resource planning systems tightly integrate the functional area information systems via a common database.
Transaction processing systems support the monitoring, collection, storage, and processing of data from the organization’s basic business transactions.
Interorganizational information systems connect two or more organizations.  Examples are supply chain management systems and electronic commerce systems.

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