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Summary Management Information System

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MIS

Summary chapter 5 ‘’IT infrastructure and emerging technologies’’

-IT infrastructure: shared technology resources that provide the platform for firm’s specific information system applications. (Including investments)

Service platform (Figure 5.1, page 196)
1. Computing platforms that connect employees customers and suppliers in an digital environment.
2. Telecommunication services (provide data, voice and video connectivity)
3. Data management services that store and manage corporate data
4. Application software services (that provide enterprise-wide capabilities)
5. Physical facilities management services that develop and manage physical installations
6. IT management services that plan and develop infrastructure, coordinate with business units for IT services, manage accounting and provide project management services
7. IT standard services that that provides information which system to be used
8. IT education services that provide training in how to use systems for employees
9. IT research and development services

Evolution era’s IS (Figure 5.2!, page 198)
1. General purpose mainframe and minicomputer era (1959- present)
=IBM mainframes run by professionals. Changed by minicomputers which was cheaper and decentralized computing.
2. Personal computer era (1981- now)
=First real computer. Wintel PC became standard desktop.
3. Client server era (1983- now)
=laptops (Clients) are networked to server computer that provides client computer with variety of services and capabilities. Two-tiered/ server architecture is simplest form and split between computer and computer network. Multitierd(N-tier)/ Client/server architecture is complicated and based on different levels of servers. (Figure 5.3, page 199) (Windows is market leader)
4. Enterprise computing (1992- present)
=Links different devices to one network.
5. Cloud and mobile…...

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