1. 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.

  2. Ubuntu is a Debian Linux-based open source operating system for desktop computers.

  3. Windows 10 unveils new innovations & is better than ever. Shop for Windows 10 laptops, PCs, tablets, apps & more. Learn about new upcoming features.

  4. iOS is the operating system associated by default with all Apple mobile devices.

  5. CentOS is a community-supported, free and open source operating system based on Red Hat Enterprise...

  6. Windows 7 is another operating system developed by Microsoft, designed to provide users with a full suite of options according to their needs.

  7. Operating system for smartphones and tablet computers, based on the Android

  8. Xiaomi MIUI Official Global Site. MIUI is a customized Android ROM developed by Xiaomi for smartphones and tablets. MIUI Forum offers ROM downloads for 251 devices including Mi 6, Mi MIX 2, Redmi Note 4 and others.

  9. Replicant is a distribution of Android that is 100% Free Software.

  10. Read more about Ubuntu Touch. Our free and open source mobile OS is made and maintained by UBports! We care about your freedom and privacy.

  11. Red Hat Enterprise Linux is an open source operating system that is certified on hundreds of clouds & with thousands of hardware & software vendors.

  12. Windows 8 is an operating system for Microsoft devices that combines some aspects of the traditional Windows system with the Live Tiles look of Windows mobile devices. Read more about Windows 8.