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The Computer Journal 1981 24(4):331-338; doi:10.1093/comjnl/24.4.331
© 1981 by British Computer Society
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Retained objects and operating system interfaces

K. Hopper *

Department of Computer Studies, University of Leeds, Leeds, LS2 9TJ, UK

The general nature of all types of object which a user may wish to retain between computing sessions is shown to be that of a file. The requirement that a transportable control language provide identical semantic effects everywhere leads to the idea of a universal file system. The specification of a file in such a system is discussed before considering the effects of widely varying underlying file systems on the mappings and facilities needed in a control language processor to support such a universal file system. Discussion of file manipulations and network connection requirements completes the design requirements for the use of retained objects in a control language processor.

Received February 1980.

* Department of Computer Studies, University of Leeds, Leeds, LS2 9TJ, UK


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