ITM 102 Lecture 5: Lecture 5

• School: Ryerson University
• Department: Information Technology Management
• Course: ITM 102
• Professor: Shi Kui Wu

Document Summary

The shared technology resources that provide the platform for the firm"s specific information system applications. Includes investment in hardware, software, and services, such as consulting, education, and training: figure 5-1. Set of physical devices and software required to operate enterprise. Set of firm wide services including: computing platforms providing computing services, telecommunications services, data management services, application software services, physical facilities management services, it management, standards, education, research and development services. General-purpose mainframe and minicomputer era: 1959 to present. Cloud computing and mobile computing era: 2000 to present: figure stages in it infrastructure evolution. Client internet web server application server sales/prod/acc/hr data. In a multitiered client/server network, client requests for service are handled by different levels of servers. Technology drivers of infrastructure evolution: moore"s law and microprocessing power, the law of mass digital storage, metcalfe"s law and network economics, declining communications costs and the internet, standards and network effects.