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1. Linux features
Linux is a multi-user, multi-tasking Unix operating system running on a wide range of platforms, including the Intel x86 processor family. Linux is a free, open-source implementation of the POSIX (Portable Operating System Interface uniX) specification, with System V and Berkeley extensions (which means it looks like Unix, but doesn't come from the same source). It is open to networks and other operating systems.
POSIX is a set of IEEE standards designed to standardize the interface between applications and the various Unix systems.
Linux's main singularity is that it is free software (copies can be distributed if accompanied by the corresponding source code), developed collaboratively and largely on a voluntary basis by thousands of programmers around the world.
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Linux features
Real-time issues
Bibliography
In Engineering Techniques
Standards
- Documentation and graphic symbols – Functional diagrams for control systems – GRAFCET" function diagram – Extension of basic concepts. - UTE C03-191 - 06-93
- Langage de spécification GRAFCET pour diagrammes fonctionnels en séquence. - CEI 60848 - 02-02
- Automates programmables. - CEI 61131 - 2003
Websites
Linux temps réel par Nicolas Ferre http://nferre.free.fr
Linux France http://www.linux-france.org
Association francophone des utilisateurs de Linux (AFUL) http://www.aful.org
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The Ultimate Scientific and Technical Reference
