Ubuntu (Xenial Xerus) 16.04
- Free (GPL)
The best free operating system out there ...charge You do not pay any licensing fees You can download, use and share Ubuntu with your friends, family, school or business for absolutely nothing ...
- PROS: Completely free operating system, Very quick and easy to use, Easy Windows installer, Ubuntu One syncs with mobile devices
- CONS: Can be difficult to install external components, Tricky to get used to after using Windows