Press platen and programmable logic controller: what they have in common

1. Step 1. Press platen — is part of — Screw press. It transfers the force to the material.
2. Step 2. Screw press — is part of — Gutenberg printing press. Gutenberg adapted the screw press known from pressing grapes.
3. Step 3. Gutenberg printing press — works like — Printer. A printer is a personal printing press: it transfers an image onto paper.
4. Step 4. Printer — has part — Microcontroller. A controller processes the print job.
5. Step 5. Microcontroller — evolved from — Microprocessor. A processor with peripherals on the chip.
6. Step 6. Microprocessor — is part of — Programmable logic controller. A processor.

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