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The Computer Journal 1975 18(2):135-139; doi:10.1093/comjnl/18.2.135
© 1975 by British Computer Society
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Systems with state re-set

J. J. Florentin1 * and A. J. Sammes2 §

1 Department of Computer Science, Birkbeck College, London, UK, 2 Project Management WAVELL, Ministry of Defence, For Halstead, Sevenoaks, UK

Some computer systems, such as operating systems and communications controllers, have to work continuously for long periods. These systems are almost inevitably affected by intermittent errors, and there is a need to develop design methods which minimise the effect of occasional errors. This paper points out that, if some part of a system can be modelled as a finite state machine, then it is sometimes possible to arrange that this part will reset itself to a correct state after an error. The technique has been used in the design of a simple interactive programming system.

Received September 1973.

* Department of Computer Science, Birkbeck College, London WC1E 7HX.

§ Project Management WAVELL, Ministry of Defence, For Halstead, Sevenoaks, Kent.


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