Electromechanical Calculator
Computer
| Computer root: | Computer |
| System class: | Electromechanical Calculator |
| system in this class: | Burroughs J700 |
| system in this class: | Monroe LA7-200 |
| system in this class: | Monroe IQ-213 |
| system in this class: | Odhner X9S-7 |
Electromechanical Calculator in the collection.