Even if you’ve used the Mac for decades, I suspect you have never fully understood the Fn key. Not helping is the fact that Apple sometimes calls it the Function key, but all Mac keyboards already ...

Close-up of the F9, F10, F11, and F12 function keys on a keyboard - Professor25/Getty Images For almost every PC or Mac user, a keyboard and either a mouse or a trackpad are more than enough to ...

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. Located across the top of the keyboard, labeled ...

Chances are good you’ve noticed the row of numbered keys across the top of your computer keyboard that all have an “F” in front of them, but they may not get much use. If you’re using a laptop, they ...