Define Variable. List two properties of variable.

Variable refers to a storage area whose contents can vary during processing. All the variables are created in the memory of the computer. The data store can change during the execution of the programs.
Two properties of variable are as follows.
  • i) Any variables name may be up to 40 character long
  • ii) Can’t contain characters other than letter, number and types of declaration character ($, %, #, & and ?)

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