Global variables A global variable places greater demand on system resources - it needs to be retained in memory (RAM) throughout the entire execution of a program.

In programming, a variable that can be used by all modules and functions in the program. The common practice is to keep global variables to a minimum, because they can be manipulated by any ...

Understanding Symbol Tables Whenever a variable is defined outside of the module environment, its name is stored in the global symbol table. Whenever you are programming in immediate mode outside of a ...