Primitive Data Type: Primitive data types are basic building blocks of data in programming languages. They include integers, floating-point numbers, characters, and booleans.
Array: An array is a container that stores multiple values of the same type under one variable name. It allows efficient storage and retrieval of related data elements.
Data Structure: A data structure refers to a way of organizing and storing data in memory for efficient access and manipulation. Examples include lists, stacks, queues, and trees.