464 research outputs found

    VLSI Multiple Microcomputer Technology Applied to Real-Time Simulators

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    VLSI technology, embodied in state of the art microprocessors and microcomputers, has implied a computer system architecture that offers the possibility for extensive standardization, modularity, and performance improvements that can significantly impact and reduce the lifetime costs of real-time simulators. This report discusses one such system. Both the hardware and software aspects of the system are examined

    NASA Thesaurus Supplement: A three part cumulative supplement to the 1982 edition of the NASA Thesaurus (supplement 3)

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    The three part cumulative NASA Thesaurus Supplement to the 1982 edition of the NASA Thesaurus includes Part 1, Hierarchical Listing, Part 2, Access Vocabulary, and Part 3, Deletions. The semiannual supplement gives complete hierarchies for new terms and includes new term indications for entries new to this supplement

    New Challenges in Computer Architecture Education

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    This study was supported by the Ministry of Education, Science and Technological Development of the Republic of Serbia, and these results are parts of Grant No. 451-03-68/2022-14/200132 with the University of Kragujevac - Faculty of Technical Sciences Čačak.This paper provides a brief overview of the development of computer architecture and its impact on approaches to the presentation of appropriate information and computer education. The relative constancy of the concepts that were applied in the architecture of the computer influenced that the classical approaches to the appropriate education are kept until today. The changes that occurred in architecture during the development of computer technology, in conjunction with technological development, required a corresponding adjustment in the sphere of education. The turning point was the advent of the microprocessor, which introduced the x86 architecture into education. The beginning of the new century was marked by the ARM architecture. And today, the RISC-V architecture is emerging more and more as a new design challenge.Publishe

    Design and implementation of a generalised computer aided learning system

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    This thesis surveys the development of computer aided learning and outlines the tools that are used for creating computer aided learning systems. A project to create and port over a computer aided learning system from a VAX 11/750 to a PDF model 11/44 based on the UNIX operating system is described. The computer aided learning system makes extensive use of existing software tools available on UNIX and is hence named CALUNIX for Computer Aided Learning on UNIX

    Status of research at the Institute for Computer Applications in Science and Engineering (ICASE)

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    Research conducted at the Institute for Computer Applications in Science and Engineering in applied mathematics, numerical analysis and computer science is summarized

    The Metamorphosis of the Mainframe Computer: The Superserver

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    Mainframe computers, which once dominated the computer hardware and software markets, have become increasingly unpopular with users. Major mainframe manufacturers have felt this decline in user demand. In 1994 mainframe computers amounted to only about 30 percent of IBM\u27s total computer sales, compared with 90 percent in 1984. UnisysCorporation announced in 1994 that it would entirely discontinue manufacturing its line of mainframe computers, electing to concentrate on more profitable areas of the computer market. Despite a trend where users abandon mainframe solutions, computer processing demand by business, industry, government, and private users is growing at a geometric rate. Unfortunately, the growing demand for computer services has been imperfectly sustained by smaller-scale but more user-friendly computers, especially networks of personal computers. However, evidence suggests that the decline of the mainframe computer will soon end. Based on this information, we believe that the mainframe will reemerge to prominence. However, it will do so in a transformed state--as a superserver. In its metamorphosis, the superserver will replace the general purpose processor as a multi-purpose processor which will perform a broad spectrum of functions, including functions of the legacy system, the database server, and the windows serve

    Optimal performance of distributed simulation programs

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    Journal ArticleThis paper describes a technique to analyze the potential speedup of distributed simulation programs. A distributed simulation strategy is proposed which minimizes execution time through the use of an oracle to control the simulation. Because the strategy relies on an oracle, it cannot be used for practical simulations. However the strategy facilitates performance evaluations of distributed simulation strategies by providing a useful point of comparison and can be used to determine the suitability of specific applications for implementation on a parallel computer. Based on the proposed strategy, a tool has been developed to determine the maximum performance which can be achieved from a distributed simulation program. In this paper we describe the technique and its use in evaluating the parallelism available in distributed simulators of parallel computer systems

    The Computer Graphics Scene in the United States

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    We briefly survey the major thrusts of computer graphics activities, examining trends and topics rather than offering a comprehensive survey of all that is happening. The directions of professional activities, hardware, software, and algorithms are outlined. Within hardware we examine workstations, personal graphics systems, high performance systems, and low level VLSI chips; within software, standards and interactive system design; within algorithms, visible surface rendering and shading, three-dimensional modeling techniques, and animation. Note: This paper was presented at Eurographics\u2784 in Copenhagen, Denmark

    An Exploration into RISC Design Philosophy as a Contemporary Computer Architectural Trend

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    This thesis is an exploration into the current RISC design philosophy through literary research and program analysis. The project is composed of four parts -Part I: Thoughts on RISC Design Philosophy; Part II: Analysis of Software Simulation as a Research Tool; Part III: Formal Design of Software Simulator; and Part IV; Pascal Simulator Computer Program. The four parts together illustrate the basic ideas behind this architectural trend
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