Business

Bis220 Concept and Management CH.2 Notes:

A computer-based information system (CBIS) is an information system that uses computer technology to perform some or all of its intended tasks. The basic components of a CBIS are hardware, software, database(s), telecommunications networks, procedures, and people. Hardware is a set of devices that accept data and information, process them, and display them. Software is a set of programs that enable the hardware to process data. A database is a collection of related files, tables, relations, and so on, that stores data and the associations among them. A network is a connecting system (wireline or wireless) 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 the individuals who work with the information system, interface with it, or use its output.

Today organizations employ many different types of information systems. Figure 2.1 illustrates the different types of information systems within organizations, and Figure 2.2 shows the different types of information systems among organizations. Chapter 8 discusses transaction processing systems, management information systems, enterprise resource planning systems, electronic data interchange (EDI) systems, and extranets. Chapter 9 discusses customer relationship management systems, and Chapter 10 discusses supply-chain management systems.

Figure 2.1 Information technology inside your organization.

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[pic] Figure 2.2 Information technology outside your organization (your supply chain).

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he IT architecture and IT infrastructure provide the basis for all information systems in the organization. An information system (IS) collects, processes, stores, analyzes, and disseminates information for a specific purpose. A computer-based information system (CBIS) is an information system that uses computer...