Track Balls

Track Balls

Track balls are input devices used to control the movement of a cursor on a computer screen. They consist of a ball that is mounted on a base and can be rotated in any direction. The ball is usually made of hard plastic or rubber and is about the size of a billiard ball. The base of the trackball contains sensors that detect the movement of the ball and translate it into movement of the cursor on the screen. Track balls were first developed in the 1950s and were used primarily in military and industrial applications. They were later adapted for use in computer systems and became popular in the 1980s and 1990s. Track balls offer several advantages over other input devices such as mice and touchpads. They require less desk space, are more precise, and are less likely to cause repetitive stress injuries. Track balls are used in a variety of applications, including graphic design, video editing, and gaming. They are also used in some specialized applications such as air traffic control and medical imaging. Track balls are available in a variety of sizes and styles, including wireless and ergonomic models.

input devices, cursor, sensors, precision, repetitive stress injuries

— Christopher Martin

CITATION : "Christopher Martin. 'Track Balls.' Design+Encyclopedia. https://design-encyclopedia.com/define/track-balls?E=404232 (Accessed on October 13, 2026)"