ERA 1 · CH.2
Every Type of Database Explained Visually
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SIGNAL LIVE · DATA · AI · WEEKLY
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DATA404 turns complex data and AI concepts into animated, visual stories. From your first database to LLMs — free, forever, for everyone.
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ERA 1 · CHAPTER 1 · FOUNDATIONS
Data Warehouse vs Data Lake vs Lakehouse — visually explained
Three architectures that changed how companies store and use data. Understand the difference in 5 minutes with animated infographics.
⚡ Animated
5 min read
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AI WARS · #1
GPT vs Gemini vs Claude — Every Version Compared
8 min · Interactive · Free
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ERA 1 · CH.4
Core Database Concepts — ACID, Indexes, Sharding
7 min · Animated · Free
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ERA 1
The Foundation
Databases · Warehouses · Lakes · Lakehouses
ERA 2
The Explosion
Big Data · Spark · Cloud · ETL/ELT · dbt
ERA 3
The Intelligence Layer
LLMs · RAG · Agents · Vector DBs · AI Stack
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