guestgulkan,
From FOLDOC, (Free On-Line Dictionary Of Computing)...
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open source
<philosophy, legal> A method and philosophy for software licensing and distribution designed to encourage use and improvement of software written by volunteers by ensuring that anyone can copy the source code and modify it freely.
The term "open source" is now more widely used than the earlier term "free software" (promoted by the Free Software Foundation) but has broadly the same meaning - free of distribution restrictions, not necessarily free of charge.
There are various open source licenses available. Programmers can choose an appropriate license to use when distributing their programs.
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...and to help further, a definition of 'Open Source Licence' from the same source...
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Open source license
<legal> Any document that attempts to specify open source usage and distribution of software. These licenses are usually drafted by experts and are likely to be more legally sound than one a programmer could write. However, loopholes do exist.
Here is a non-exhaustive list of open source licenses:
1. Public Domain - No license.
2. BSD License - An early open source license
3. General Public License (GPL) - The copyleft license of the Free Software Foundation. Used for GNU software and much of Linux.
4. Artistic License Less restrictive than the GPL, permitted by Perl in addition to the GPL.
5. Mozilla Public Licenses (MPL, MozPL) and Netscape Public License (NPL).
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... and Open Source Initiative...
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Open Source Initiative
<body> (OSI) An organisation dedicated to managing and promoting the Open Source Definition for the good of the community.
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...and 'Open Source Definition'...
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Open Source Definition
<standard> (OSD) Definition of distribution terms for open source software, promoted by the Open Source Initiative.
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...hope this helps. Please note specifically the middle paragraph in the definition of 'Open Source' which states...
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The term "open source" is now more widely used than the earlier term "free software" (promoted by the Free Software Foundation) but has broadly the same meaning - free of distribution restrictions, not necessarily free of charge.
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...which may be contentious to some of the people here who hold the strongest positive viewpoints on Linux et al. Personally, I say each to his own and get on with life, it's not that much of an issue for me, but though t I could help here...
Take Care Y'all...
Rhys
Be careful that the light at the end of the tunnel isn't a train coming the other way.