QUESTION 1:
Do you imagine that a variable can change its value?
revised 9/26/98; 7/27/99; 01/17/00; 04/23/00
In all but the smallest program, a running program is constantly calculating values, saving values, returning to a previously calculated value, getting values from input, and so on. These values are kept in little sections of main memory called variables.
Do you imagine that a variable can change its value?