• a trade name for a family of operating systems developed by Microsoft that interacts with users through a Graphical user interface. Windows is the operating system used by most of the world’s PCs.


  • A common operating system. There have been many versions, including 3.0, 95, and XP. As of Windows 95 the interface is similar to that utilized by Macintosh computers.

Information & Library Science

  • a trade name for a computer system developed by Microsoft, using icons, mouse and windows devised for use with software to make it more user-friendly than the purely keyboard-based systems