fact: Aside from providing entertainment as a computer game, Microsoft Solitaire was intended to familiarize new users of Windows 3.0 with graphical user interfaces and the basics of a mouse like the drag-and-drop gesture utilized to move cards. Being a familiar game that eases in new users into the operating system, it was the most used application on Windows for its early years as computers were rising in popularity. Minesweeper introduced in 3.1 served an analogous purpose, which additionally taught users the right-click button and trained their mouse speed and accuracy.