Open-source hardware refers to physical devices and systems whose design specifications are publicly available for anyone to use, modify, and distribute. This concept promotes collaboration and innovation, allowing individuals and organizations to build upon existing designs without legal restrictions. Examples include Arduino boards and Raspberry Pi computers, which are widely used in educational and hobbyist projects. The open-source hardware movement encourages transparency and accessibility in technology development. By sharing designs and documentation, creators can foster a community of makers who contribute improvements and new ideas. This approach can lead to more affordable and customizable solutions in various fields, including robotics and electronics.