Keyboard and CNC machine: what they have in common

1. Step 1. Keyboard — is part of — Carillon. A keyboard.
2. Step 2. Carillon — has part — Pinned cylinder. Automatic carillons have a pinned drum.
3. Step 3. Pinned cylinder — uses — Program control of a machine. The cylinder is a replaceable carrier of a sequence of actions.
4. Step 4. Program control of a machine — is used in — CNC machine. The tool’s movement is set by a program — at first on punched tape.

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