The function keys or F-keys on a computer keyboard, labeled F1 through F12, are keys that have a special function defined by the operating system, or by a currently running program.

On some smaller keyboards, including those on many laptop computers, the F-keys may have a dedicated function such as changing the brightness of the screen, the volume of the audio, or other device-specific functions. On these keyboards, there is typically a separate Fn key that you can hold down to indicate that you want to use the key as a standard Function key.

All TapeTrack List Windows have the following inbuilt Function Key functions.