Clay core und Analytische Maschine: was sie gemeinsam haben

1. Schritt 1. Clay core — ist Teil von — Levee. A clay layer that keeps water out.
2. Schritt 2. Levee — ist hergestellt aus — Ton. Levees were built up of earth and clay.
3. Schritt 3. Ton — ist Material für — Movable type. Bi Sheng’s type was made of fired clay.
4. Schritt 4. Movable type — ist Teil von — Gutenberg printing press. Text is set from metal type.
5. Schritt 5. Gutenberg printing press — funktioniert wie — Jacquard loom. An analogy, not proven influence: both set type and a chain of punched cards are a replaceable pattern that a machine reproduces over and over.
6. Schritt 6. Jacquard loom — inspirierte — Analytische Maschine. Babbage borrowed Jacquard’s punched cards directly for entering operations and data; Ada Lovelace compared the machine to the Jacquard loom.

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