[fuzzfactor]

They didn't call them mouse cursors with Ataris and Commodores because almost nobody had heard of a mouse, but there was more than one joystick port so multi-player was built-in from the beginning.

I hadn't heard of a mouse either but when the trackball appeared, mainly to play Centipedes and Missile Command, I used it as a single-button mouse anyway, not only to point & click but to drag & drop which I had never seen demonstrated.

So I made a little 2-player game, not fancy, each player stayed in their own window.

Of course nobody had ever heard of "Windows" either since MS-DOS wasn't even out yet.