Chromebooks can do a lot right out of the box. However, if you want just a little more, you can install Linux apps to most newer models and have access to a full catalog of desktop-class applications.
How to enable Linux
Your Chromebook already runs Linux because Chrome is its own Linux distribution, but it’s a very locked-down version without access to most Linux tools and programs by default. Luckily, turning everything on is easy.
[Source: Android Central]