Machine spindle y Imprenta de Gutenberg: qué tienen en común

1. Paso 1. Machine spindle — forma parte de — Fresadora. It turns the cutter.
2. Paso 2. Fresadora — evolucionó en — Máquina CNC. The first CNC machines were milling machines (MIT, 1952).
3. Paso 3. Máquina CNC — utiliza — Control por programa. The tool’s movement is set by a program — at first on punched tape.
4. Paso 4. Control por programa — se utiliza en — Telar Jacquard. The chain of cards is the program of the pattern.
5. Paso 5. Telar Jacquard — funciona como — Imprenta de Gutenberg. 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.

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