A prototype is a preliminary model of a product that helps designers and engineers test their ideas before final production. It can be a simple sketch, a digital model, or a physical object. Prototypes allow creators to explore different features, identify potential problems, and gather feedback from users, making it easier to refine the design. In the world of technology, companies like Apple and Tesla often use prototypes to showcase new features or products. For instance, a smartphone prototype might include various screen sizes and camera placements to see which design works best. This process is crucial for innovation and improving user experience.