+A **node** is a fundamental point or connection in a [network](/wiki/network) or structure. It represents a single unit, capable of processing, storing, or transmitting data. Nodes are often linked to others, forming the intricate relationships explored in [Graph Theory](/wiki/graph-theory).
+## See also
+- [Network](/wiki/network)
+- [Graph Theory](/wiki/graph-theory)
+- [Data Structure](/wiki/data-structure)
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