If you take a look at your laptop’s keyboard, you’ll notice that the top row keys have icons printed above, with “F” and a number, like F1, F2, and so on, below each one. These are known as function keys and are now primarily used to control system features, depending on the icon printed above them. While the function keys may vary slightly depending on which laptop you own, for instance, here are the function keys you’ll find on an M2 MacBook Air for reference….

Check out the original article: [Slashgear]How To Use The F Keys On Your Laptop