https://ir.unisa.ac.za/handle/10500/23970 2026-05-06T12:46:14Z 2026-05-06T12:46:14Z Williams, M.H. https://ir.unisa.ac.za/handle/10500/23987 2018-05-22T01:00:54Z 1979-01-01T00:00:00Z

Design Principles of the Language BPL Williams, M.H. BASIC and Pascal are two rather different programming languages, both of which have proved to be very popular. A new language BPL has been designed as an interactive programming language based on these two languages, combining advantages of each. This paper discusses some of the criteria used in the design of the language.

1979-01-01T00:00:00Z Turton, Trevor https://ir.unisa.ac.za/handle/10500/23986 2018-05-22T01:00:54Z 1979-01-01T00:00:00Z

The Management of Operating System State Data Turton, Trevor 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 which could manage all shared state data. This central routine is based on the techniques currently employed by database management systems.

1979-01-01T00:00:00Z Roets, P. P. https://ir.unisa.ac.za/handle/10500/23985 2018-05-22T01:00:51Z 1979-01-01T00:00:00Z

An Algorithm for Merging Disk Files in Place Roets, P. P. An algorithm is presented for sorting a random access file in place. The algorithm is unique in the sense that no auxiliary storage, apart from a number of buffers in the machine's high-speed memory, is required. In addition, the algorithm makes active use of the random access capabilities of rotating magnetic media and cannot be converted to operate on sequential files. The run time is known to be of 0( n log n) under certain circumstances. An example also shows that this run time can deteriorate to 0( n* ), which is probably also the worst-case run time.

1979-01-01T00:00:00Z Penzhorn, A. https://ir.unisa.ac.za/handle/10500/23984 2018-06-19T10:49:56Z 1979-01-01T00:00:00Z

Die Toepaslikheid van 'n Analitiese Model by die Keuse van 'n Leerstruktuur vir 'n Teksverwerkingstelsel Penzhorn, A. Die keuse van 'n geskikte leerorganisasie vir 'n rekenaarstelsel is nie altyd eenvoudig en voor die hand liggend nie. In die geval onder bespreking moet 'n geskikte leerorganisasie gekies word vir 'n teksverwerkingstelsel wat die gebruik van 'n intelligente eindpunt met sekondere stoorvermoe insluit Groot blokke teks kan na redigering per direkte koppeling na 'n minirekenaar gestuur word vir berging, paginering, formatering en latere berwinning. Die oogmerk is dus die keuse van 'n doeltreffende leerstruktuur vir die berging en verwerking van die teks op sekondere gebeue. Om die keuse te vergemaklik, is analitiese modelle ontwikkei o.a. deur Yao. Sy model word, met die oog op die toepaslikheid daarvan, bespreek

1979-01-01T00:00:00Z