Explain computer networks with a simple example
The short version: computer networks refers to systems of connected devices exchanging data through layered protocols. A quick example makes it concrete — A web request uses HTTP over TCP over IP.
How to approach it step by step
Once one example makes sense, the method generalises: trace the request down the protocol stack and back up at the receiver. In a visual interactive session the example is built on screen piece by piece, so you see which quantity changes at each step instead of only reading a final answer. Ask for a harder variant and the explanation adapts on the spot.
Worked example
A web request uses HTTP over TCP over IP.
The mistake most learners make
Confusing IP addressing with DNS name resolution.
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