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Computer Science · Hardware & Systems
How the Internet Works
The internet isn't a cloud in the sky — it's a real network of cables, routers, and servers sending your data as tiny packets.
🌐The Journey of Your Request
Every device has its own IP address, so each step knows exactly where to send your data next.
📦Data Travels in Packets
✂️One file → many packets → put back together
1SplitYour request is chopped into tiny numbered packets.
2TravelEach packet zips along the fastest open path.
3ReassembleYour device puts them back in order — done!
📜Protocols — the Rules of the Net
HTTPLoads web pages from a server to your browser.
HTTPS 🔒Secure HTTP — your data is encrypted as it travels.
DNSTranslates names like google.com into IP addresses.
IP AddressA unique number — the mailing address of each device.
📮 Just like sending mail!
An IP address is like a home mailing address.
Packets are like splitting one big delivery into smaller boxes.
Each box finds its own way and they meet up at the end.
🔑Key Terms
🌍Internet A global network of billions of connected computers and devices.
📦Packet A small chunk of data, reassembled at the destination.
📍IP Address A unique number identifying every device online.
📜Protocol A set of rules for how computers send data to each other.
🖥️Server A powerful computer that stores data and responds to requests.
📡Router A device that directs packets along the best path to their destination.
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Remember: the internet is a real, physical network — your data zips across it as tiny packets, each following its own fastest route!