Components

This section collects the reusable building blocks that appear in many system designs. Read these after the fundamentals so the trade-offs feel grounded.

  1. Caching
  2. Databases
  3. Message Queues
  4. Indexing
  5. Proxies

How to Use This Section

  • Focus on the problem each component solves.
  • Learn when to choose one component over another.
  • Pay attention to the cost of scaling each piece.

Next Step

After components, continue to Advanced Topics.