Physical devices refer to tangible objects that can be interacted with in the physical world. These include a wide range of items such as computers, smartphones, and peripherals like keyboards and mice. Each of these devices serves a specific function, enabling users to perform tasks, communicate, and access information. In today's digital age, physical devices play a crucial role in our daily lives. They bridge the gap between the digital and physical realms, allowing us to engage with technology in a hands-on manner. As technology evolves, the design and functionality of these devices continue to improve, enhancing user experience and productivity.