Go to the Microsoft website for more information on the Microsoft Windows operating system

Go to the Apple website for more information on the Mac OS operating system

Go to the Linux website for more information on the Linux operating system

To benchmark the history on Microsoft Windows; it was first introduced in 1981 in a command line fashion known as MS-DOS. 28 years later, now shifted to a Graphical User Interface (GUI) fashion, it has become one of the top leaders among the widely used client operating systems. To learn more about Microsoft Windows environment, please visit www.microsoft.com.