What are the four main components of programming languages, and why is each one needed?

The four main components of programming languages are variables, control structures, data structures, and syntax.

Explanation:

The four main components of programming languages are variables, control structures, data structures, and syntax. The variables are used to store information that can be stored and manipulated in a computer program. They provide a way of labeling data with a descriptive name, so our programs can be understood more clearly. Control structures are the building blocks of computers programs. They are commands that enable a program to “take decisions.” Data structures is a data organization, management, and storage format that enables efficient access and modification. More precisely, a data structure is a collection of data values. Syntax of a computer language is the set of rules that defines the combinations of symbols that are considered to be correctly structured statements or expressions in that language. Syntax therefore refers to the form of the code.

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