Open sources refer to software or resources that are made available to the public with a license that allows anyone to view, use, modify, and distribute the source code. This approach promotes collaboration and innovation, as developers from around the world can contribute to projects, improving functionality and security. Popular examples of open-source software include Linux, Apache, and Mozilla Firefox. The open-source model extends beyond software to include various types of content, such as educational materials and research data. This movement encourages transparency and accessibility, allowing individuals and organizations to share knowledge freely. Initiatives like Creative Commons support the open-source philosophy by providing licenses for creative works.