Wi-Fi and lead–acid battery: what they have in common

1. Step 1. Wi-Fi — is used in — Internet of things. Wireless communication.
2. Step 2. Internet of things — has part — Cloud computing. Internet-of-things devices send their data to the cloud for processing.
3. Step 3. Cloud computing — uses — Data centre. The cloud is data centres.
4. Step 4. Data centre — has part — Uninterruptible power supply. Backup power.
5. Step 5. Uninterruptible power supply — has part — Lead–acid battery. A battery.

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