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Data types Essay Topics & Paper Examples

Data Type and Visual Basic

A variable in programming refers to a block of memory reserved to hold specific data. A variable is so named because the programmer can change the data contained in the memory block as need permits. The variable is assigned a name by the programmer that is used any time the variable is referenced or manipulated. In most programming languages the variable is also designated a data type that helps the computer know what kind of data is being stored at the memory location and assign the correct amount of space to the variable. Purpose The variable allows the programmer to store information temporarily within the program itself. The variable can contain information read from an external file, entered by the…