A real number is treated asFloatDoubleIntegerLong double

In most programming languages, a real number can be treated as a Float or a Double.

1. Float: A float is a single-precision floating point number that can represent fractional values. It typically occupies 4 bytes in memory.

2. Double: A double is a double-precision floating point number that can represent larger fractional values with more precision. It typically occupies 8 bytes in memory.

Integer and Long double are different types of data:

3. Integer: An integer is a whole number that can be either positive, negative or zero. It does not have a fractional component.

4. Long double: A long double is a floating point number that has even more precision than a double. It typically occupies 10 to 16 bytes in memory, depending on the implementation.

So, if you have a real number (a number that can have a fractional component), you would typically use a float or a double to represent it in a program, depending on the level of precision you need.