Function keys are special keys on a computer keyboard, typically labeled F1 through F12. They are designed to perform specific tasks or commands, depending on the software being used. For example, pressing F1 often opens the help menu in many applications, while F5 is commonly used to refresh a webpage in web browsers. These keys can also be customized to perform different functions based on user preferences or specific software settings. In some cases, they may require the use of the Fn key to access their alternate functions, especially on laptops where space is limited.