Traffic light und router: was sie gemeinsam haben
- Schritt 1. Traffic light — hat als Teil — Relay. Relay controllers.
- Schritt 2. Relay — ist Teil von — Electrical telegraph. Relays boosted the signal on long lines.
- Schritt 3. Electrical telegraph — funktioniert wie — Packet switching. An analogy: telegraph messages were passed from station to station with intermediate storage — a “store and forward” principle similar to packet transmission.
- Schritt 4. Packet switching — wird verwendet in — Router. It forwards packets.