How Data TravelsNetwork Protocols
The Internet Is a Stack of Envelopes
Global communication works because each layer has one job
Every message you send can cross the planet through machines that never read it. So how do they know where it goes?
You'll find out
- What travels around every message
- Who opens what along the way
- Why Wi-Fi or cable makes no difference
Why it matters
It's why one app works on any network, and why the internet keeps growing without starting over.
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