They are called primitive data types. (This is a pretty basic find in Wikipedia's article on data types.)


The consensus from the available information I've found points to SNOBOL4, released in 1967, as the earliest implementation of "associative arrays". This post on the Software Engineering community is very similar to your question and has some great info. Chicago University - Intro to TCL course: Associative Arrays Associative arrays were first used in ...

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