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 ...

Use your phone in one hand without fumbling around. Image: D. Griffin Jones/Cult of Mac The iPhone has a one-handed mode for the keyboard and a feature called Reachability for tapping buttons on the ...