Packet switching and hydraulic press: what they have in common

1. Step 1. Packet switching — is used in — ARPANET. ARPANET was the first large packet-switched network.
2. Step 2. ARPANET — has part — Computer. The nodes of the network are the computers of universities and laboratories.
3. Step 3. Computer — is used in — Flight simulator. Modern simulators are computer-based.
4. Step 4. Flight simulator — has part — Hydraulic cylinder. A motion platform.
5. Step 5. Hydraulic cylinder — is part of — Hydraulic press. Two cylinders of different diameters.

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