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The word Ubuntu on a black background
Black controller on blue background
Black Steam engine on a black background
Apple logos on a red background
Apple Mac Desktop Screensaver Green Apple
Image of windows symbols on a textured background
Aluminum monoblock from the Apple manufacturer
Toy android and apple laptop
A large crowd of people at the exhibition
Windows8 screensaver, operating system
The blue window of the Windows eight operating system
A picture of the microsoft logo on a blue background with the windows 8 sign