Open Source refers to software whose source code is made available to the public, allowing anyone to view, modify, and distribute it. This model promotes collaboration and transparency, enabling developers to work together to improve software and share their innovations with the community. The Open Source movement has led to the creation of many popular software projects, such as Linux and Apache. By fostering a culture of sharing and cooperation, Open Source not only enhances software quality but also empowers users and developers to contribute to projects that matter to them.