When you quickly need to capture something on your phone’s display—a high score, a meme, an address—a screenshot is often the best way to do it. By default though, you'll only get what's showing on ...

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 ...