A variable is a portion of memory to store a determined value. Usually, the variable has a symbolic name which can make it easily recognizable in a sea of other variables. You need to determine one variable from another.
Take note that the variable can be changed depending on what you will save on it. You can easily manipulate the variable depending on what you think will work best for what you are creating. If the variable will not have all of the proper information then it will not be understood by those who are using the computer program.
Variable is a portion of memory to store a determined value. According to its name, it is a value that can vary as per the conditions or the information passed to the program. Typically, a program consists of information that tells the computer what to do and the data (raw fact) that the program uses while running.
The data consists of fixed values that never change and variable values (which are usually initialized to "0" or some initial value because the actual values will be supplied by a program's user). Usually, certain data types are define by both constants and variables. Each data type determines and restricts the form of required data.