A Hardware-Based Real-Time Operating System
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Authors
Rodd, M. G.
Issue Date
1979-06-01
Type
Article
Language
en
Keywords
Alternative Title
Abstract
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 spend a large proportion of computing time in handling their own organization
This situation 1s compounded m many tune-cntlcal mdustnal process-control applications
This paper proposes that a possible solution hes m the adoption of a hardware-based real-time operating system The system consists of a rrucrocontroller
work.mg m close relationship with a conventional rrumcomputer To retam a high degree offlexibihty, the rrucrocontroller makes use of m1croprogrammable,
bipolar, b1t-shce rrucroprocessor elements In essense, the umt executes the pnncipal functions of a real-time operating system, acts as a
pre-processor for all incorrung requests, and ensures a high rate of task switching
The system has been applied m a senes of real-time expenmental configurations These were controlled successively by the conventional, software-
implemented approach, and by the proposed system The respective performances were evaluated The new strategy 1s shown to result ma better
and more econorrucal mdustnal controller.
Description
Related website: sacj.cs.uct.ac.za
Citation
Quaestiones Informaticae
Publisher
Computer Society of South Africa (on behalf of SAICSIT)
License
Journal
Volume
Issue
PubMed ID
DOI
ISSN
0254-2757