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IBM Systems Journal

Issue 2 • Date 1968

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Displaying Results 1 - 6 of 6
  • Avoiding deadlock in multitasking systems

    Publication Year: 1968, Page(s):74 - 84
    Cited by:  Papers (36)  |  Patents (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1484 KB)

    Deadlock problems can arise in many subtle ways in a multitasking system. System designers must be constantly alert to the deadlock possibilities of any proposed design. Users designing application programs in which multitasking capabilities are used face similar problems. Once a deadlock situation has been recognized, it can probably be circumvented by one of the techniques described. View full abstract»

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  • Statistics gathering and simulation for the Apollo real-time operating system

    Publication Year: 1968, Page(s):85 - 102
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1863 KB)

    Experience and techniques used at RTCC to analyze computer system performance have evolved through long exposure to the problem of assuring workable system designs or problem sohtions. The original development of the techniques discussed in this paper .began in mid-1963 for use with Gemini systems and the 7094-11. When probIems in computer size or speed arose, new computers were simulated. When I/... View full abstract»

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  • Turnaround time for messages of differing priorities

    Publication Year: 1968, Page(s):103 - 122
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1985 KB)

    Performing data processing services at different priorities involves considerations not usually associated with queuing theory. Basically, this is due to the fact that a lower priority service can be performed at the same time that an input/output operation is taking place as part of a higher priority service. This overlapping of i/o operations with the execution of instructions complicates the pr... View full abstract»

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  • Hierarchical control programs for systems evaluation

    Publication Year: 1968, Page(s):123 - 133
    Cited by:  Papers (1)  |  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1447 KB)

    The task of testing a complete operating and computing system has become increasingly difficult, primarily because of the growing complexity of today's systems. An operating system consists of a control program and a set of job programs; a computing system consists of at least one processing unit and various channels, control units, and input/output devices. Not only must each program and system d... View full abstract»

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  • Authors

    Publication Year: 1968, Page(s): 134
    IEEE is not the copyright holder of this material | PDF file iconPDF (767 KB)
    Freely Available from IEEE
  • Abstracts

    Publication Year: 1968, Page(s):135 - 143
    IEEE is not the copyright holder of this material | PDF file iconPDF (1317 KB)
    Freely Available from IEEE

Aims & Scope

Throughout its history, the IBM Systems Journal has been devoted to software, software systems, and services, focusing on concepts, architectures, and the uses of software.

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Editor-in-Chief
John J. Ritsko
IBM T. J. Watson Research Center5