Here’s the ultimate rundown of everything F1 – F12 keys do

The function keys on a computer keyboard labelled F1 through F12, are keys that have a special function defined by a currently running program or by the operating system. They can be combined with the Ctrl or Alt keys.

On some laptop computers and smaller keyboards, the F-keys may have a dedicated function such as the volume, changing the brightness of the screen, or other device-specific functions. On such 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. For example, on the MacBook Pro laptop, the F12 key’s primary function is to increase the audio volume. If the key is pressed while the Fn key is held down, the key will register as F12, and trigger any software functions that are configured to use this key.

If you would prefer not to press the Fn key to access your function keys, you can configure the keyboard to treat them as regular function keys in your System Settings or Control Panel.

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