Computer

Issue 8 • Aug. 1991

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Displaying Results 1 - 8 of 8
  • An object-based taxonomy for distributed computing systems

    Publication Year: 1991, Page(s):17 - 27
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (901 KB)

    A hierarchy of questions and answers about the features of distributed computing systems (DCSs) leads to an overall system description that facilitates system comparisons. The taxonomy uses terminology from an object-based model of DCSs and emphasizes the runtime services the DCS provides to applications. It is based on the division of DCS issues into three distinct categories: threads object prop... View full abstract»

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  • Logical time in distributed computing systems

    Publication Year: 1991, Page(s):28 - 33
    Cited by:  Papers (174)  |  Patents (9)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (594 KB)

    The partial ordering of events as defined by their causal relationships, that is, the ability of one event to directly, or transitively, affect another is defined. Its generalized and practical implementations in terms of partially ordered logical clocks are described. Such clocks can provide a decentralized definition of time for distributed computing systems, which lack a common time base. In th... View full abstract»

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  • The Galaxy distributed operating system

    Publication Year: 1991, Page(s):34 - 41
    Cited by:  Papers (14)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (841 KB)

    The Galaxy research project, which is attempting to design, implement, and use a distributed computing environment, based on the idea of making gradual improvements by learning from existing systems and trying to overcome their limitations, is described. The design goals and novel aspects of the project are outlined, and the Galaxy system architecture is described. Galaxy's object naming and locat... View full abstract»

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  • Tools for distributed application management

    Publication Year: 1991, Page(s):42 - 51
    Cited by:  Papers (42)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1008 KB)

    The issues of managing distributed applications are discussed, and a set of tools, the meta system, that solves some longstanding problems is presented. The Meta model of a distributed application is described. To make the discussion concrete, it is shown how NuMon, a seismological analysis system for monitoring compliance with nuclear test-ban treaties is managed within the Meta framework. The th... View full abstract»

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  • Distributed shared memory: a survey of issues and algorithms

    Publication Year: 1991, Page(s):52 - 60
    Cited by:  Papers (148)  |  Patents (40)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (870 KB)

    An overview of distributed shared memory (DSM) issues is presented. Memory coherence, design choices, and implementation methods are included. The discussion of design choices covers structure and granularity, coherence semantics, scalability, and heterogeneity. Implementation issues concern data location and access, the coherence protocol, replacement strategy, and thrashing. Algorithms that supp... View full abstract»

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  • Communication facilities for distributed transaction-processing systems

    Publication Year: 1991, Page(s):61 - 66
    Cited by:  Papers (7)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (642 KB)

    The study of communication designs in the context of the Raid system, a robust and adaptable distributed database system for transaction processing, is discussed. Related research work on local interprocess communication, remote interprocess communication, and communication protocols for both local area and wide area networks is briefly summarized. A series of experiments on the performance of the... View full abstract»

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  • Distributed database systems: where are we now?

    Publication Year: 1991, Page(s):68 - 78
    Cited by:  Papers (49)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1371 KB)

    The authors explain what is meant by a distributed database system and discuss its characteristics. They survey the state of distributed database technology, focusing on how well products meet the goals of transparent management of distributed and replicated data, reliability through distributed transactions, better performance, and easier, more economical system expansion. They then consider unso... View full abstract»

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  • Standards-HyTime: a standard for structured hypermedia interchange

    Publication Year: 1991, Page(s):81 - 84
    Cited by:  Papers (6)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (452 KB)

    Some of the key concepts and features of HyTime, which is being developed as an American and an international standard (ISO/IEC 10744) for structured representation of hypermedia information, are introduced. HyTime is an application of ISO 8879 and is interchanged using ASN.1 (ISO 8824) for OSI compatibility. HyTime complements and enhances the utility of standards for individual multimedia object... View full abstract»

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Computer, the flagship publication of the IEEE Computer Society, publishes peer-reviewed articles written for and by computer researchers and practitioners representing the full spectrum of computing and information technology, from hardware to software and from emerging research to new applications. 

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Editor-in-Chief
Sumi Helal
Lancaster University
sumi.helal@computer.org