Turing’s Bombe and internal combustion engine: what they have in common

1. Step 1. Turing’s Bombe — has part — Relay. Electromechanics.
2. Step 2. Relay — evolved into — Programmable logic controller. It replaced relay cabinets.
3. Step 3. Programmable logic controller — has part — Microprocessor. A processor.
4. Step 4. Microprocessor — is part of — Engine control unit. A microprocessor.
5. Step 5. Engine control unit — is part of — Internal combustion engine. An engine control unit.

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