hardware
2 free lessons tagged hardware across AI, Science. Each one is a short sequence of focused steps with narration and a five-question quiz at the end — take them in any order, no signup required.
Inside the machine that runs AI
An AI data center is not a warehouse of ordinary computers; it is a single supercomputer built from tens of thousands of specialized chips wired together. Learn why GPUs beat regular processors for AI, why the network between chips matters as much as the chips, why one company dominates the market, and the cost structure that makes these buildings so expensive.
Hardware approaches: superconducting, ion, photonic, atomic, spin
Six families of physical qubit implementations and the engineering trade-offs that distinguish them — coherence time, gate time and fidelity, scalability, and control complexity. The numbers behind 'which is best' depend on which metric you care about.