17 Nov
2016
17 Nov
'16
7:20 p.m.
Also, the Englebart mouse is two potentiometers mounted at a right angle
so it only worked in a confined space.
As an aside, didn't the much later Radio Shack mouse for the CoCo work like
that? It plugged into the joystick port, and AFAIK needed no special software.
-tony