Telemedicine and gutenberg printing press: what they have in common

1. Step 1. Telemedicine — uses — Fitness tracker. Remote monitoring.
2. Step 2. Fitness tracker — has part — Bluetooth. A link to the phone.
3. Step 3. Bluetooth — is used in — Smart lock. Bluetooth.
4. Step 4. Smart lock — has part — Microcontroller. A microcontroller checks access.
5. Step 5. Microcontroller — is part of — Printer. A controller processes the print job.
6. Step 6. Printer — works like — Gutenberg printing press. A printer is a personal printing press: it transfers an image onto paper.

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