+A **code unit** is the fundamental, fixed-size digital element that forms a part of a [character encoding](/wiki/Character_Encoding). It's the smallest chunk of data used to represent text, often combining with others to form a single [character](/wiki/Character). For instance, [UTF-8](/wiki/UTF-8) employs 8-bit units, while [UTF-16](/wiki/UTF-16) uses 16-bit units.
+## See also
+- [Unicode](/wiki/Unicode)
+- [Code Point](/wiki/Code_Point)
+- [UTF-8](/wiki/UTF-8)
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