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Computing & Control Engineering Journal

Issue 1 • Date Jan 1992

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Displaying Results 1 - 9 of 9
  • The distance education situation and CAI at the University of South Africa

    Page(s): 7 - 10
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (328 KB)  

    The Department of Computer Science and Information Systems at the University of South Africa (Unisa-a distance teaching university) has, over the years, been struggling with the twin problems of lack of staff and a difficult subject to teach adequately using only the traditional medium (the written or printed word) employed at Unisa. The article describes the rationale for choosing computer-aided instruction (CAI) to address both problems View full abstract»

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  • Design and application of an industrial controller

    Page(s): 29 - 34
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (416 KB)  

    The authors have developed a microcomputer-based multiloop controller, MMC-90, which is, on the one hand, aimed at scientific research work, i.e. the study of the most modern techniques of control and, on the other hand, aimed at solving actual industrial problems. A programming environment has been made, which allows design, simulation and automatic coding of control structures for this controller as well as other programmable microcomputers controllers [computer-aided control engineering method]. The MMC-90 controller has already performed two interesting applications. The combustion control in a steam boiler PK-401 in Cinkarna Celje has been realised. Besides numerous other positive effects, 4% fuel has also been saved and ecological conditions have been greatly improved View full abstract»

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  • Towards software communities and software clearing houses

    Page(s): 35 - 42
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (764 KB)  

    It is often said that software reuse requires changes in traditional software development processes. This article looks at the changes that might be required in the software industry itself if it is to be based on software reuse. The authors begin by introducing software communities and software clearing houses as the context for large-scale reuse of software components. They next look at issues associated with the packaging, distribution and validation of components. Because software for reuse and proprietary software are somewhat contradictory, the authors discuss marketing and pricing approaches that attempt to reconcile their opposing requirements. They discuss various forms that software companies may take in an environment of large-scale reuse and look at programmes, such as the European Software and Systems Initiative, that may have an impact on the formation of such environments View full abstract»

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  • A computer concepts course

    Page(s): 19 - 22
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (344 KB)  

    During 1989 a new course on computer concepts was approved at the University of South Africa. It was decided to use a new approach to the teaching-at-a-distance education environment by introducing a multimedia teaching package for this course on computer concepts for computer users. The contents of the course and the reasons for having such a course are described in the article, together with the tutorial package for the course, the administrative arrangements made for the presentation of the course and a presentation of the authors' findings during the first year of operation of the course View full abstract»

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  • Constraints on computer-assisted instruction in a distance education environment

    Page(s): 11 - 13
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (248 KB)  

    When deciding to develop and use computer-assisted instruction (CAI) within a distance education environment, there are a number of constraints that must be kept in mind. In the article limitations on CAI and distance teaching in general and specific problems encountered in using CAI in the distance education environment are discussed. CAI can help to eliminate some weaknesses of distance education in general; on the other hand, distance education as such can place more constraints in CAI View full abstract»

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  • Distance education at the University of South Africa: the whole dream

    Page(s): 26 - 27
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (128 KB)  

    The possibilities of employing computers in distance education go far beyond using CAI courseware in a multimedia approach to distance education. Imagination needs to be stretched to envisage a full electronic university. Distance education has a powerful role to play in the current and future education and training of South Africans. The traditional teaching model of the University of South Africa is insufficient to cope with the present and future situation. CAI is viable in a distance education situation, and a multimedia approach such as the one that Unisa has followed could go a long way towards alleviating the teacher and lecturer shortage and enhancing the quality of distance education and training View full abstract»

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  • Overview of automation in a palm oil mill-the sterilisation process

    Page(s): 45 - 52
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (572 KB)  

    Sterilisation of oil palm fruits is the first step in the sequence of processes to extract the oil. It is typically a batch process, using steam for heating or `cooking' the fruits. Sterilisation is carried out in a way which requires the proper sequencing of valve movements for deaeration, steam inputs, steam blow-offs and condensate removal. Since a palm oil mill normally has multiple sterilisers, the task is to ensure the proper sequencing of all the associated valves. In this review, the sterilisation process is taken as a case in the study of automation in a palm oil mill. This article discusses the sterilisation process in the palm oil mill and elaborates on the control requirements. It also examines the features of some installed systems View full abstract»

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  • Computer-assisted instruction development model for a computer concepts course

    Page(s): 13 - 18
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (516 KB)  

    Describes the computer-assisted instruction (CAI) model used for the development of courseware that forms part of the tutorial package for the computer concepts course at the University of South Africa. The courseware design model which was followed consisted of five phases: preparation for the project, predesign, design, programming and formative evaluation, and summative evaluation View full abstract»

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  • The use of computer-based testbanks at the University of South Africa

    Page(s): 23 - 25
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (216 KB)  

    The distance education University of South Africa has included a computer-assisted instruction package as part of its computer concepts course. A computerised package is used to set up banks of short questions, selections of which are presented to the student as a self-test. The package has been well received by students View full abstract»

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Aims & Scope

Published from 2003-2007, Computing and Control Engineering was concerned with computing, communications, control and instrumentation.

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