The question is in regard to the devices found here: https://www.reddit.com/r/Trackballs/
Are they by definition computer mice?
The mice I have seen have been designed with:
- Rollerball (ball on the bottom).
- Optical (laser on the bottom).
But a trackball has the ball on top and the device itself is stationary. Yet, they both have the same functionality of moving a cursor, clicking, scrolling, etc.. on a computer.
So are trackballs a computer mouse, or type of computer mouse, or a completely different device by definition of a mouse?