Aspects of distributed computer systems
Overview and examples. The idea of distribution. Examples based on banking industry. A service industry example. A joint operational/management system.An assessment. Undelying concepts. Distributed elements of a system. Systems structure. System structure - shape. Distance. Allocation. Organization and economics. Decentralization and centralization. Hardware costs. Operational costs. Application development costs. Concluding observations.
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The Idea of Distribution
Single Systems Image
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achieve addition application development application logic application program architecture associated batch business unit communications complex computer hardware concept configuration data center data manager data processing data structures decentralization decisions dedicated defined determine dispersed distributed processing distributed systems economies of scale elements enterprise environment expenses failsoft Figure function hierarchic installation instructions interaction processor interconnection mechanism interface involved issues large node large system layer load machine megabyte memory ment MIPS module multiple multiple processing units multiprocessor necessary on-line operating system operational costs organization partitioning performance physical possible price/performance price/performance ratio problem processing nodes processing units reasonable remote replication responsible shared single systems image skills small nodes small systems smaller software structures staff subsystem suggests synchronization systems programmer systems software systems structures teleprocessing terminals tion transaction undertake uniprocessor various vendor virtual memory zone