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C Basics
Get started with C: learn the essential syntax, data types, operators, arrays, pointers, and functions.

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C is one of the most influential programming languages ever created. Developed in the early 1970s, it remains the foundation of modern computing - operating systems, embedded systems, and many other languages are built with or influenced by C.

In this unit, you’ll learn the essentials of C programming. We’ll cover basic syntax, variables and data types, operators, input and output, and how to structure C programs. While C requires more manual work than higher-level languages, this gives you a deeper understanding of how computers actually work.

Learning C will make you a better programmer overall, as the concepts you learn here apply to virtually every other programming language.

Lessons in this unit:

0: ▶︎ Introduction
1: Introduction to C
2: Variables and types
3: Constants
4: Operators
5: Conditionals
6: Loops
7: Arrays
8: Strings
9: Pointers
10: Functions