ADMS 2511 Lecture Notes - Lecture 5: Barcode, Programming Paradigm, Mainframe Computer
6 Oct 2015
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Cpu: manipulates the data and controls the task performed by the other components. Primary storage: temporarily stores data and program instructions during processing. Secondary storage: external to the cpu; stores data for future use. Input technologies: accepts data and instructions and converts them to a form that computer can understand. Output technologies: presents data and information in a form people can understand. Communication technologies: provides the flow of data from external computer networks. New work styles benefit employees and organization? (from home) Organizations find they do not have enough computer processing power to meet their needs. Massive data centers called server farms, which contain hundreds of thousands of networked computer servers: provide redundancy any fault tolerance in case one or more servers fail. Virtualization means that servers no longer have to be dedicated to a particular task. Grid computing: applies to the unused processing resources of many geographically dispersed computers in a network to form a virtual supercomputer.
