0 a ball on a computer mouse or keyboard that you roll with your finger in order to move the cursor on the screen: --
Less common setups include devices such as trackballs or steering wheels.
He works, creates art, and communicates via the computer by using his thumb on a trackball mouse.
It employed the same twin trackballs with an action button duplicated on either side and a similar cocktail cabinet design with horizontal screen.
This button is duplicated on either side of the trackball for left or right-handed players.
The trackball broke down due to the body oils from his hands.
The majority of the displays are screens, with a trackball to choose to play a video on a certain topic.
Its trackball system exhibited issues with wear under high use, and without maintenance most specimens eventually broke down.
This variant of the mouse resembled an inverted trackball and became the predominant form used with personal computers throughout the 1980s and 1990s.
