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			== Free and open-source software ==
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			File:Fedora_Linux_36_takes_pic_with_bunch_of_FOSS_softwares.png\|Fedora Linux 36 takes pic with bunch of FOSS softwares
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'''Free and open-source software''' ('''FOSS''') refers to software that can be classified as both [[free software]] and [[open-source software]]. That is, anyone is freely licensed to use, copy, study, and change the software in any way, and the source code is openly shared so that people are encouraged to voluntarily improve the design of the software. This has led to FOSS being a fundamental aspect in the fields of [[software development]] and [[computer science]], as well as playing a significant role in the development of the [[Internet]] and the democratization of online content creation.

== Definition and Principles ==
The term "free" in free software pertains to freedom and not price; however, it is important to note that free software can also be distributed at no cost. The [[Free Software Foundation]] (FSF), founded by [[Richard Stallman]], defines free software as software that gives users the freedom to run, copy, distribute, study, change, and improve the software. Open-source software, on the other hand, is defined by the [[Open Source Initiative]] (OSI) based on criteria focused on access to the source code and the freedom to modify and share the software.

The main principles of FOSS revolve around:
* Freedom to run the program for any purpose.
* Freedom to study how the program works and adapt it to your needs.
* Freedom to redistribute copies so you can help your neighbor.
* Freedom to improve the program and release your improvements to the public, so that the whole community benefits.

== Licensing ==
FOSS licenses vary, but they must comply with the [[Free Software Definition]] or the [[Open Source Definition]]. Popular licenses include the [[GNU General Public License]] (GPL), the [[MIT License]], and the [[Apache License]]. Each of these licenses allows the software to be freely used, modified, and shared under defined terms and conditions.

== Advantages and Disadvantages ==
=== Advantages ===
* '''Cost''': FOSS can often be used, modified, and distributed at no cost.
* '''Flexibility and Freedom''': Users have the flexibility to customize the software to meet their needs.
* '''Security''': With its open nature, it is easier for the community to identify and fix security vulnerabilities.
* '''Community Support''': A large and active community often supports FOSS, providing help and resources.

=== Disadvantages ===
* '''Usability''': Some FOSS projects may lack the user-friendly design of their proprietary counterparts.
* '''Support''': While community support is available, the lack of formal customer service can be a drawback for some users.
* '''Compatibility''': There may be issues with compatibility and integration with standard software or systems.

== Impact on Society ==
FOSS has had a profound impact on society, enabling the growth of the internet, supporting the development of new computing technologies, and fostering innovation. It has also played a crucial role in education, government, and non-profit sectors by providing cost-effective and adaptable software solutions.

== See Also ==
* [[Open-source software movement]]
* [[History of free and open-source software]]
* [[List of free and open-source software packages]]

== References ==
<references />

[[Category:Free software]]
[[Category:Open-source software]]
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Free and open-source software - Revision history

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