Sail et Machine analytique de Babbage : ce qu'ils ont en commun

1. Étape 1. Sail — fait partie de — Sailing ship. Sails drive the ship.
2. Étape 2. Sailing ship — utilise — Mercator projection. Navigating along straight rhumb lines.
3. Étape 3. Mercator projection — utilise — Gutenberg printing press. Maps were printed in large numbers.
4. Étape 4. Gutenberg printing press — fonctionne comme — 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.
5. Étape 5. Jacquard loom — a inspiré — Machine analytique de Babbage. 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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