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IBM Systems Journal

Issue 2 • Date 1987

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Displaying Results 1 - 6 of 6
  • Preface

    Publication Year: 1987 , Page(s): 156
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (968 KB)  

    Interest in Open Systems Interconnection (OSI) for networks has grown with the completion of major components of these standards. As initial OSI networks are implemented, interconnection with the more than 10 000 existing SNA networks will become an increasingly common goal. The paper by Sy and his colleagues reports on a joint study between IBM and Nippon Telegraph and Telephone Corporation on OSI-SNA interconnection. It describes a possible application of OSI and compares the functions of OSI and SNA. It also introduces mapping techniques and a gateway structure, as well as discussing address translation and exception handling. View full abstract»

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  • OSI-SNA interconnections

    Publication Year: 1987 , Page(s): 157 - 173
    Cited by:  Papers (8)  |  Patents (4)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (2077 KB)  

    As Open Systems Interconnection (OSI) becomes an international standard, it is gaining support in both industry and government agencies. One of the major applications of OSI is to act as an intermediary between heterogeneous networks. This paper discusses a scheme for interconnecting a Systems Network Architecture (SNA) network with OSI. This scheme is based on a joint study between IBM Japan and Nippon Telegraph and Telephone Corporation conducted during 1984. Fundamental relationships between OSI session and transport layers and SNA Logical Unit type 6.2 are explored. An OSI-SNA gateway structure is examined, and data units, address translation, and exception handling are discussed. View full abstract»

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  • Visual interpretation of complex data

    Publication Year: 1987 , Page(s): 174 - 200
    Cited by:  Papers (5)  |  Patents (2)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (2554 KB)  

    With increasingly complex digital simulations and computations, larger volumes of output are generated, and users must select a concise method of displaying the output and extracting relevant information. A set of imaging functions and display modes is developed to interpret data effectively for a wide range of applications. The imaging functions are complementary. Each function is useful for a different aspect of data interpretation. The relationships between variables and the global structures within the data are obtained with different display modes such as multiple windows and animation. With this set of complementary imaging functions and display modes, more information is obtained than with prior imaging methods. Also, more complex simulation studies are feasible since the results can now be visualized. View full abstract»

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  • An incidence-matrix-driven panel system for the IBM PC

    Publication Year: 1987 , Page(s): 201 - 214
    Cited by:  Patents (4)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (2082 KB)  

    A set of programs called TRYLON is discussed which permits the application developer to design and create a set of intelligent full-screen panels. These panels serve as a user interface for application programs. The panels and the linkages between them are uncoupled from the application code, thereby reducing programming effort and development time. An incidence matrix is used to describe the graph of a network composed of the panels. Because the paths among the panels are specified by entries in the incidence matrix at panel creation time, there is no need to program the logical constructs for the network. View full abstract»

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  • A page-swapping prototype for VM/HPO

    Publication Year: 1987 , Page(s): 215 - 230
    Cited by:  Papers (3)  |  Patents (2)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (2165 KB)  

    This paper discusses a series of changes that were made to a system running the Virtual Machine/System Product with the High Performance Option to enhance paging. The motivation and the background for these enhancements are discussed, and the design of a series of experimental paging subsystems is described and contrasted with the old design: specifically, the new algorithms for main memory management, block paging, working set identification, trimming, prepaging, page replacement, page-out device selection, and page-out slot selection. The performance impact of these changes is illustrated by results of benchmark measurements, which are then contrasted to measurements without the enhancements. Some things learned in running the prototype are discussed and conclusions drawn. View full abstract»

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  • Suggested reading

    Publication Year: 1987 , Page(s): 231
    Save to Project icon | PDF file iconPDF (923 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