COMMERCE 2KA3 Lecture Notes - Lecture 5: Service-Level Agreement, Consumerization, Grid Computing
26 Mar 2017
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Chapter 5 it infrastructure and emerging technologies. Cloud computing: access to a shared pool of computing resources over a network, often the internet, cloud and mobile computing (2000-present) Evolution of it (know in order: mainframe and minicomputer computing( 1959-present) Became powerful enough to support thousands of online remote terminals connected to the centralized mainframe using proprietary communication protocols and data lines. Under control of professional programmers and systems operators. Minicomputers: power machines at far lower prices than ibm mainframes, thus it was possible to decentralize computing, customized to the specific needs of individual departments: personal computing (pc) (1981-present) Wintel pc: windows operating system software on a computer with an intel microprocessor became the standard desktop personal computer: client/server networks. Clients: desktop or laptop computers are networked to powerful server computers that provide the client computers with a variety of service and capabilities.
