How a message crosses the internet
There is no route planned in advance and no single machine in charge. A packet is passed from stranger to stranger until it arrives, or does not.
How Computers Work · Part 6
Subject
Computing
What computers are actually doing underneath the interface.
What a logic gate actually is
Every explanation of computing hurries past the gate. It is worth stopping, because almost everything above it is the same trick repeated.
How Computers Work · Part 2
Turns up alongside
Part of a thread
From a switch to the internet
Each layer hides the one below it until a message can cross the world.