Ubuntu - Ubuntu is a Debian Linux-based open source operating system for desktop computers.
Android - Android is an open source mobile operating system initially released by Google in 2008 and has since become of the most widely used operating systems on any platform.
Windows 10 - Windows 10 unveils new innovations & is better than ever. Shop for Windows 10 laptops, PCs, tablets, apps & more. Learn about new upcoming features.
CentOS - CentOS is a community-supported, free and open source operating system based on Red Hat Enterprise...
Red Hat Enterprise Linux - Red Hat Enterprise Linux is an open source operating system that is certified on hundreds of clouds & with thousands of hardware & software vendors.
DistroWatch - 9 hours ago - It does include a proprietary software set optimized for business users, students, researchers and developers." A list of features and further details can be found in the company's release announcement.