Poster with the logo of the manchester united football clubPoster with the logo of the Manchester United football club
Yellow-orange logo of the linux ubuntu operating systemYellow-orange logo of the Linux Ubuntu operating system
Coat of arms of the united nations. organization of the worldCoat of arms of the United Nations. Organization of the world
The operating system is distinguished by its complexityThe operating system is distinguished by its complexity
Windows 7 is a custom operating system of the windows nt familyWindows 7 is a custom operating system of the Windows NT family