Could you explain what data types designed for storing meaningful data in programming are?

In programming, types designed to store meaningful data are usually called value types. In C#, they include structures (struct), enumerations (enum), and primitive types (e.g., int, bool, double).

The difference from reference types is that value types store data directly, not a reference to an object in memory. This means that when assigning or passing a value type, a copy of the data is created.

Example of a structure in C#:

struct Point {
    public int X;
    public int Y;
}

Point p1 = new Point { X = 10, Y = 20 };
Point p2 = p1; // a copy of p1 is created
p2.X = 30;
// p1.X remains 10, p2.X will be 30

Value types are efficient for small objects and are often used to represent simple data such as coordinates, colors, dates, etc.