Brief: Ubuntu provides an easy way to find and install proprietary drivers. This quick tutorial shows you how to install additional drivers in Ubuntu.
If you just installed Ubuntu, you may have some issues with wireless or graphics card. Ubuntu is aware of these issues and this is why they provide an easy way to install additional drivers. You may use them to get better performance on your system. If you find them not working, you can revert easily.
Go in Ubuntu Unity Dash (or GNOME Activity Overview) by pressing Super Key (Windows key) and search for Software Sources:
In the Software Center, go to the Additional Drivers tab:
If you want to use the default driver instead of the proprietary one that you just installed, just select the option “Do not use the device” under that.
Here you will find all the additional drivers available for your computer in Ubuntu. Cheers :)