[1] : The Free On-line Dictionary of Computing (27 SEP 03)

volatile variable
     
         a variable in a computer program which can be
        modified by processes other than the program.  for example, a
        variable that stores the value of a timer chip either because
        it is located at the address of the hardware device or because
        it is updated on interrupts needs to be volatile to be
        useful.
     
        a static variable, on the other hand, maintains its value
        until the program changes it or it is no longer needed.  in
        addition, volatile variables can be held in the stack
        whereas static variables are usually stored in a program's
        data segment.
     
        1995-05-17
     
     
see also:
interrupt static stack data segment 

Volatile >> V Words
Volatile, definition of term: Volatile
volatile_pag1.html

Variable >> V Words
Variable, definition of term: Variable
variable_pag1.html

Volatile Oil >> V Words
Volatile Oil, definition of term: Volatile Oil
volatile+oil_pag1.html

Variable Resist >> V Words
Variable Resist, definition of term: Variable Resist
variable+resist_pag1.html