A method for divisionally utilizing a memory area may include the steps of setting an input buffer area in the memory, receiving data from a computer, determining whether a user defined character is received, storing data to the input buffer if the user defined character is not received in the above step, determining if a down load flag is set to "0" if the user defined character is received, resetting the memory for the input buffer and down load buffer if the down load flag is set to "0" in the above step, setting the down load flag to "0", and storing data in the down load buffer if the down load flag is not "0".
