The function keys, or F keys, on a computer keyboard serve as a line of shortcut keys that invoke various actions and commands in software applications.

Are you sitting on unused Mac function (fn) keys on your keyboard? Here's how to remap Mac function keys and repurpose them to trigger useful actions.

The Fn key is also known as the function key, and on Windows and most Mac keyboards, you'll find it located in the bottom-left corner of your keyboard.

Having more keys with additional functions necessitates a larger keyboard, but if you don't need all the bells and whistles, you can cut things down to size by a surprising amount.

The Fn key is also known as the function key, and on Windows and most Mac keyboards, you'll find it located in the bottom-left corner of your keyboard.

What does function key actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

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