Galactic Positioning System
From MediaWiki
A Galactic Positioning System (or GPS) is a system that tells its user his/her/its physical position in the galaxy. Surprise!
Fiction
IDW Generation 1 continuity
Optimus Prime had a GPS precise enough not only to say that he was on Cybertron, but where on Cybertron, even if nearby landmarks—like a mountain range—were missing.Transformers: The Death of Optimus Prime

