Ever looked down at your keyboard and wondered what all the buttons on it do? While some are pretty easy to understand — like Backspace or Page Down — there are some keys that you might not ...

Add Yahoo as a preferred source to see more of our stories on Google. Ever looked down at your keyboard and wondered what all the buttons on it do? While some are pretty easy to understand — like ...

close up of pause break key on a keyboard - Tomasz Śmigla/Getty Images Ever looked down at your keyboard and wondered what all the buttons on it do? While some are pretty easy to understand — like ...

A closeup of the keypad of a customized mechanical keyboard showing the Pause button. - Patrick Breen - CC BY 2.0 / Wikimedia Commons There are a lot of keys on a modern full-size computer keyboard ...