The logo of the android 4.4 operating system is redThe logo of the Android 4.4 operating system is red
Schematic representation of the operating system on a green backgroundSchematic representation of the operating system on a green background
Minimalistic image of the windows eight operating system emblemMinimalistic image of the windows eight operating system emblem
Operating system for smartphones, tablets, e-booksOperating system for smartphones, tablets, e-books
Welcome screensaver of the windows operating systemWelcome screensaver of the Windows operating system