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Browsing Quaestiones Informaticae (QI) by Title

Browsing Quaestiones Informaticae (QI) by Title

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  • Generating relations using formal grammars 
    von Solms, S. H. (Computer Society of South Africa (on behalf of SAICSIT), 1987)
    Grammars generating 2-dimensional arrays have been studied by many people [1, 2, 3, 4). One effort was Random Context Array Grammars [4], where different types of context conditions placed on the production, were used ...
  • Hands-on microprogramming for computer science students 
    Clayton, Peter G. (Computer Society of South Africa (on behalf of SAICSIT), 1987)
    This paper advocates hands-on training on microprogrammable hardware for Computer Science students, and suggests an appropriate microprogram development approach for this purpose. The particular tool discussed is ...
  • A Hardware-Based Real-Time Operating System 
    Rodd, M. G. (Computer Society of South Africa (on behalf of SAICSIT), 1979)
    The efficient use of multiprogrammed industrial control computers is largely a function of the relationship between hardware and software. A shift in this relationship is desirable, since multiprogrammed computers typically ...
  • A Hardware-Based Real-Time Operating System 
    Rodd, M. G. (Computer Society of South Africa (on behalf of SAICSIT), 1979-06-01)
    The efficient use of multiprogrammed mdustnal control computers 1s largely a function of the relationship between hardware and software A shift in this relationship 1s desirable, smce multiprogrammed computers typically ...
  • High-level Debugging Systems for Pascal: Interpreter versus Compiler 
    Hirsch, Michael; Schach, Stephen R.; Van Biljon, Willem R. (Computer Society of South Africa (on behalf of SAICSIT), 1985)
    Two approaches to high-level debugging systems for Pascal are compared, namely the use of a debugging precompiler as against a debugging interpreter. A description is given of a high-level Pascal debugging interpreter ...
  • A high-level interface to a relational database System 
    Berman, Sonia; Walker, L. (Computer Society of South Africa (on behalf of SAICSIT), 1986)
    A high-level language for accessing a relational database is being developed at UCT. The system, known as HAL (High-level Access Language), provides complete data independence as users view the database in terms of ...
  • High-level Programming Language for Interactive Lisp-like Languages 
    Postma, Stef W. (Computer Society of South Africa (on behalf of SAICSIT), 1980)
    The language LISP 1.5 is neither easy to write nor to read. In the McCarthy etal. definitive manual on LISP 1.5 a higher level language, MLISP, is used From the early 1960's various people have proposed higher level ...
  • The Impact of Microcomputers in Computer Science 
    Danhof, Kenneth J.; Smith, Carol L. (Computer Society of South Africa (on behalf of SAICSIT), 1979)
    This paper considers the emerging role of the microcomputer laboratory in a computer science department The components for a particular laboratory are suggested. These include the microcomputers themselves, supporting ...
  • An Improved Implementation of Grimbleby's Algorithm 
    Schach, Stephen R. (Computer Society of South Africa (on behalf of SAICSIT), 1983)
    Details are given of an implementation of Grimbleby's algorithm for the common spanning tree problem with running times up to 50% less than for the original implementation. An explanation is given as to why implementations ...
  • In praise of solid state discs 
    Ridler, P.F. (Computer Society of South Africa (on behalf of SAICSIT), 1986)
    Various ways of using random access memory to emulate a magnetic disc storage system are described and the advantages and disadvantages are enumerated. An algorithm for making use of a solid state disc is given which avoids ...
  • An Interactive Graphical Array Trace 
    Schach, Stephen R. (Computer Society of South Africa (on behalf of SAICSIT), 1982)
    data structure and its computer implementation. However, in the course of debugging a program written in a high-level language, the user is sometimes forced to try to understand the low-level implementation of his data ...
  • Laws and techniques of information systems 
    Mende, J. (Computer Society of South Africa (on behalf of SAICSIT), 1986)
    Research has a utilitarian role of providing the knowledge needed by the designers of mankind's artefacts. In this context four distinct categories of knowledge are identifiable. 1. Laws of Nature describe inherent ...
  • Learning the first step in requirements specification 
    Short, R.M.C. (Computer Society of South Africa (on behalf of SAICSIT), 1988)
    Learning about the domain into which an information system will fit is an essential part of the system development process. In this paper it is argued that the first stage of the development process should be learning ...
  • Local area networks in perspective 
    Kritzinger, Pieter S. (Computer Society of South Africa (on behalf of SAICSIT), 1987)
    Current scientific and trade literature are flooded with information about local area networks. Details about physical media and their properties, versions of media access methods confusingly called protocols, variations ...
  • Low-cost artificial intelligence research tools 
    Machanick, Philip (Computer Society of South Africa (on behalf of SAICSIT), 1986)
    There has been a proliferation of low-cost AI tools. Consideration is given as to how significant research may be conducted using these tools, in the light of experience of developing Al tools on large, expensive machines. ...
  • The Management of Operating System State Data 
    Turton, Trevor (Computer Society of South Africa (on behalf of SAICSIT), 1979)
    A new approach is proposed for the management of operating system state data. Relational database concepts are suggested for the analysis and organization of this data, and a common central service routine is described ...
  • Managing and Documenting 10-20 Man Year Projects 
    Visser, P. (Computer Society of South Africa (on behalf of SAICSIT), 1983)
    This paper presents a summary of tutorial material on accepted management techniques and philosophies as applied to the development of large software systems, based upon the documentation for such systems.
  • The Memory Organization of Future Large Processors 
    Stein, David M. (Computer Society of South Africa (on behalf of SAICSIT), 1980)
    In this paper some specifics and some generalities on the subject of memory organization for future large processors are discussed. We briefly review the current hierarchy and discuss technological and economic changes ...
  • Micro-Code Implementation of Language Interpreters 
    Roets, P. P. (Computer Society of South Africa (on behalf of SAICSIT), 1982)
    An evaluation is made of the improvement of language interpreters by coding recurring sequences of instructions in micro-code. The results of an experiment with PASCAL indicate that the increase in speed expected may not ...
  • Migrations: A Microcomputer-Based Generalized Information Retrieval System 
    Pino, Jose A. (Computer Society of South Africa (on behalf of SAICSIT), 1984)
    This paper describes the design of MIGRATIONS, a software system under development at the University of Chile, whose purpose is to store, manage and retrieve unformatted text information. Among the most important design ...

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