Differenzmaschine und optical telegraph: was sie gemeinsam haben
- Schritt 1. Differenzmaschine — entwickelte sich zu — Analytische Maschine. Babbage moved on to a general-purpose machine while working on the difference engine.
- Schritt 2. Analytische Maschine — inspirierte — Harvard Mark I. Howard Aiken named Babbage’s work as the source of his idea.
- Schritt 3. Harvard Mark I — hat als Teil — Relay. The Mark I was electromechanical, built from relays.
- Schritt 4. Relay — ist Teil von — Electrical telegraph. Relays boosted the signal on long lines.
- Schritt 5. Electrical telegraph — entwickelte sich aus — Optical telegraph. The electrical telegraph replaced semaphore lines.