Learn about fundamental data types, how to declare variables, use constants, and understand type conversions.
Understand the basic data types in C: int, char, float, and double, along with their modifiers.
Learn how to define fixed values that cannot be changed during program execution.
Understand implicit and explicit (casting) conversions between different data types.
Explore how storage classes (auto, extern, static, register) define the scope, lifetime, and visibility of variables.