M-5
- Intelligent tactical computer developed by Richard Daystrom as a proof-of-concept of multitronics (TOS: "The Ultimate Computer")
- During battle drills testing capabilities of M-5 unit, excessive self-preservation instincts derived from engrams reproduced from Daystrom's own mind led to multiple casualties
(TOS: "The Ultimate Computer")
- Unit was disabled by Captain James Kirk (TOS: "The Ultimate Computer")
- Unit eventually recovered by Emil Vaslovik, brought to Valhalla Station, Odin (TNG Novel: Immortal Coil)