What is the Tet in the movie Oblivion?

Related questions

1. How much does Matt Damon make per movie?
2. Is Prometheus a prequel to Aliens?
3. What is the meaning of TET exam?
4. Where was alien Covenant filmed?
5. Is alien Covenant a sequel to Prometheus?
6. How did Hercules free Prometheus?
7. How much does Denzel Washington make per movie?
8. Where is the waterfall in Prometheus?
9. What is the meaning of FET?
10. What is the Tet from oblivion?

Tags

1. #oblivion
2. #human
3. #reality
4. #killed
5. #titan
6. #story
7. #itself
8. #launch
9. #cover
10. #which
11. #destroyed
12. #humans
13. #controlled
14. #arrived
15. #autonomously
16. #artificial
17. #intelligence
18. #drones
19. #functioning