Mainframe and internal combustion engine: what they have in common

1. Step 1. Mainframe — uses — Punched card. Programs were entered on punched cards.
2. Step 2. Punched card — is used in — Jacquard loom. Each punched card sets one pass of the pattern.
3. Step 3. Jacquard loom — was inspired by — Automaton. Vaucanson, the maker of automata, built an automatic loom whose ideas Jacquard used.
4. Step 4. Automaton — has part — Cam. Cams set the figures’ movements.
5. Step 5. Cam — is part of — Camshaft. The shaft carries several cams.
6. Step 6. Camshaft — is part of — Internal combustion engine. The camshaft opens the engine’s valves.

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