User:Nikoleta88/sandbox

 ΕΙΣΑΓΩΓΉ ΣΤΟ ΕΛΕΎΘΕΡΟ ΛΟΓΙΣΜΙΚΌ ΕΛ/ΛΑΚ 

Σε αυτό το κεφάλαιο θα αναλύσουμε τον ορισμό του ελεύθερου λογισμικού,σχετικές έννοιες,την ιστορία του,τον τρόπο που αναπτύχθηκε και έγινε γνωστό ευρέως, ακόμη θα αναπτυχθούν τα πλεονεκτήματα και τα μειονεκτήματα της χρήσης του ελεύθερου λογισμικού,θα δοθούν διάφορα παραδείγματα προγραμμάτων καθώς και η σχετική νομοθεσία που ισχύει και στην Ελλάδα και τέλος διάφορες μελέτες για το μέλλον των Ελευθέρων Λογισμικών. Free Redistribution

The license shall not restrict any party from selling or giving away the software as a component of an aggregate software distribution containing programs from several different sources. The license shall not require a royalty or other fee for such sale - with the exception of the Creative Commons Attribution Non-commercial versions of the standard Creative Commons licence.

Rationale: By constraining the license to require free redistribution, we eliminate the temptation to throw away many long-term gains in order to make a few short-term sales dollars. If we didn't do this, there would be lots of pressure for cooperators to defect.

2. Source Code

The program must include source code, and must allow distribution in source code as well as compiled form. Where some form of a product is not distributed with source code, there must be a well-publicized means of obtaining the source code for no more than a reasonable reproduction cost–preferably, downloading via the Internet without charge. The source code must be the preferred form in which a programmer would modify the program. Deliberately obfuscated source code is not allowed. Intermediate forms such as the output of a preprocessor or translator are not allowed.

Rationale: We require access to un-obfuscated source code because you can't evolve programs without modifying them. Since our purpose is to make evolution easy, we require that modification be made easy.

3. Derived Works

The license must allow modifications and derived works, and must allow them to be distributed under the same terms as the license of the original software.

Rationale: The mere ability to read source isn't enough to support independent peer review and rapid evolutionary selection. For rapid evolution to happen, people need to be able to experiment with and redistribute modifications.

4. Integrity of The Author's Source Code

The license may restrict source-code from being distributed in modified form only if the license allows the distribution of "patch files" with the source code for the purpose of modifying the program at build time. The license must explicitly permit distribution of software built from modified source code. The license may require derived works to carry a different name or version number from the original software.

Rationale: Encouraging lots of improvement is a good thing, but users have a right to know who is responsible for the software they are using. Authors and maintainers have reciprocal right to know what they're being asked to support and protect their reputations.