Bit und Informationstheorie und optical telegraph: was sie gemeinsam haben

1. Schritt 1. Bit und Informationstheorie — wird verwendet in — Packet switching. Packets are sequences of bits.
2. Schritt 2. Packet switching — funktioniert wie — Electrical telegraph. An analogy: telegraph messages were passed from station to station with intermediate storage — a “store and forward” principle similar to packet transmission.
3. Schritt 3. Electrical telegraph — entwickelte sich aus — Optical telegraph. The electrical telegraph replaced semaphore lines.

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