Microsoft included Solitaire in Windows in 1990.
Why?

Q: Microsoft included Solitaire in Windows in 1990. Why?

To teach users how to drag-and-drop with a mouse.. The mouse was a mystery to most PC users at the time. Solitaire was a training tool disguised as a game. Billions of billable hours later, it remains that.

Question

Accepted Answer

To teach users how to drag-and-drop with a mouse. — The mouse was a mystery to most PC users at the time. Solitaire was a training tool disguised as a game. Billions of billable hours later, it remains that.