Think Machine had two known systems that were used in vaults near Washington, D.C. Think Machine 2800x was used in Vault 106, while Think Machine 3600r was used in Vault 112. It is also mentioned in the Vault Dwellers survival guide that Vault 13 uses Think Machine as its computer control system.
Think Machine is mentioned only in Fallout 3.
Behind the scenes
A real-world corporation Thinking Machines is a supercomputer manufacturer that was headquartered in Cambridge, Massachusetts.
- Citadel terminal entries; Vault-Tec terminal, Vault 106
- Citadel terminal entries; Vault-Tec terminal, Vault 112
- Vault Dweller's Survival Guide