Wi-Fi uses radio waves to connect a device to the internet, a huge web of connected computers. Messages travel in small pieces called packets, and a grown-up keeps the Wi-Fi password private.
20 blocks · 7 graded
18 blocks · 7 graded
17 blocks · 7 graded
19 blocks · 7 graded
17 blocks · 8 graded
12 blocks · 3 graded
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