Computers
- Motion tracking computer systems which follow the motions of an actor to allow those motions to be used in computer animation
- Tracker (music software)
- MetaTracker, a search utility for Unix-like systems
- BitTorrent tracker, a server that directs the BitTorrent downloads and uploads
- OpenTracker, the file manager and desktop in the BeOS
- Tracker (file manager), the file manager and desktop in the Haiku operating system
- Issue tracking system or bug tracking system for computer software
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