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Tracker ball

Max Newiss and Lloyd Thompson

A trackerballtracker ball is computer cursor control device. The user can roll the ball to navigate around the screen.

The uses are:

  • Controls the movement of a pointer on the screen.

Advantages are:

  • They are ergonomic which makes them more comfortable to use.
  • For people with wrist or forearm problems who can’t use a mouse.
  • On smaller desk space.

Disadvantages are:

  • Mainly moulded for right handed people.
  • More expensive.

Alternatives are:

  • Scroll wheel.
  • Mouse.