Data type

Collection or grouping of data values, usually specified by a set of possible values, or a set of allowed operations on these values.¹

Purpose

• a matter of good organisation that aids the understanding of complex definitions
• allows compilers to choose an efficient machine representation

Types

• Non-primitive data type
• Primitive data type
• Abstract data type

Footnotes

1. https://en.wikipedia.org/wiki/Data_type ↩