Alternator and programmable logic controller: what they have in common

1. Step 1. Alternator — has part — Rectifier. A diode bridge.
2. Step 2. Rectifier — is part of — Power supply. A rectifier.
3. Step 3. Power supply — is part of — Personal computer. The power supply turns mains power into the voltages the board and drives need.
4. Step 4. Personal computer — has part — Microprocessor. The PC became possible thanks to the microprocessor.
5. Step 5. Microprocessor — is part of — Programmable logic controller. A processor.

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