Function keys are special keys on a computer keyboard, typically labeled F1 through F12. They are located at the top of the keyboard and serve various purposes 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. Each function key can be programmed to perform specific tasks or shortcuts, enhancing productivity. In some cases, they may also be combined with the Shift, Ctrl, or Alt keys to execute different commands. Their versatility makes them valuable tools for users across various platforms.