Android and multistage rocket: what they have in common

1. Step 1. Android — is used in — Smartphone. The most widespread mobile OS.
2. Step 2. Smartphone — has part — Radio module and antenna. Connection to the cellular network, Wi-Fi, Bluetooth and satellite navigation.
3. Step 3. Radio module and antenna — is part of — Space probe. Communication with Earth.
4. Step 4. Space probe — uses — Multistage rocket. Launch.

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