chapter 4 - Variables, Data Type, Numbers, Typecasting
1) Variables are nothing but reserved memory locations to store values. The equal sign (=) is used to assign values to variables. The operand to the left of the = operator is the name of the variable and the operand to the right of the = operator is the value stored in the variable.
2) Number data types store numeric values. They are immutable data types
3) Data types are the classification or categorization of data items. It represents the kind of value that tells what operations can be performed on a particular data. You can get the data type of any object by using the type() function.
4) Typecasting - Type Casting is the method to convert the variable data type into a certain data type in order to the operation required to be performed by users.
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