What do the f buttons do?

The "F" keys, also known as function keys, are located at the top of a keyboard and are typically labeled F1 through F12. Each key has specific functions that can vary by application; for example, F1 is often used for help, while F5 is commonly used to refresh a webpage. In many software programs, users can also customize the function keys for specific tasks, enhancing productivity. Additionally, holding the "Fn" key while pressing an F key can activate secondary functions, such as adjusting volume or brightness on laptops.