Blog et Machine CNC : ce qu'ils ont en commun

1. Étape 1. Blog — a évolué de — Newspaper. A personal publication.
2. Étape 2. Newspaper — utilise — Rotary printing press. Mass print runs.
3. Étape 3. Rotary printing press — a évolué de — Gutenberg printing press. Cylinders instead of a flat press.
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 — utilise — Program control of a machine. The chain of cards is the program of the pattern.
6. Étape 6. Program control of a machine — est utilisé dans — Machine CNC. The tool’s movement is set by a program — at first on punched tape.

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