General |
Home |
Milestones of Computing |
History of Mechanical Calculators |
The Industry |
How my fascination f. Mechn. Calcul. started |
Visits to Museums |
New on this site? |
Calculating Technologies (How do they Calculate) |
Fundamentals |
Overview | - Direct add |
- Rocking Segment |
- Stepped Drum |
- Pin Wheel |
- Proportional Lever |
- Switched Latch Wheel |
Technical miscellaneous |
Mechanical memories |
Electric drive |
Used case materials |
Renovation Experiences |
My collection: |
- by Manuf. matrix |
- by Technology summ. |
By manufacturer
Type writers |
Hamond |