Solitaire was allegedly used to teach people about drag-and-drop with the mouse: > Microsoft intended Solitaire "to soothe people intimidated by the operating

Solitaire was allegedly used to teach people about drag-and-drop with the mouse: > Microsoft intended Solitaire "to soothe people intimidated by the operating system," and at a time where many users were still unfamiliar with graphical user interfaces, it proved useful in familiarizing them with the use of a mouse, such as the drag-and-drop technique required for moving cards. From https://en.m.wikipedia.org/wiki/Microsoft_Solitaire https://en.m.wikipedia.org/wiki/Microsoft_Solitaire