# Relational Database > **Machine-Evolution Nexus:** [[articles/Digital Darwinism and the Invisible World of Machine Evolution|Digital Darwinism and the Invisible World of Machine Evolution]] places this node within the history and governance of substrate-independent evolution. **Domain:** Computer Science / Data Systems **Doc Type:** Canonical Wiki Node **Maturity:** Developed ## Definition A relational database organizes data as relations represented through tables and manipulated by formal operations. ## Nexus Context Codd’s relational model became foundational to data systems, while his less-famous cellular-automaton work reduced von Neumann’s universal constructor. The pairing exemplifies hidden intellectual lineages inside computing. ## Evidence Boundary Relational tables are unrelated to biological relation by more than abstract structure; the node’s purpose here is biographical and infrastructural context. ## Relationships [[wiki/Edgar F. Codd|Edgar F. Codd]], [[wiki/Cellular Automata|Cellular Automata]], [[wiki/Information Inheritance|Information Inheritance]], [[wiki/Technical Archaeology|Technical Archaeology]] ## Sources / Provenance - Codd, “A Relational Model of Data for Large Shared Data Banks” (1970).