BEGINNER First Principles 3 Lessons
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How Computing Works

Before you can design systems, you need to understand the machine they run on. Why is RAM 100,000x faster than a hard disk? What does a CPU actually do? What happens when two threads touch the same variable? These aren't trivia questions — they're the physical laws your architecture has to live inside.

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First Principles: From Bits to Distributed Systems

Build understanding from the ground up. Start with how computers physically work, follow the journey through networks, APIs, and databases, and arrive at the hard problems of distributed systems — all with deep conceptual grounding, not memorization.