The control unit may further comprise {TAIL ~ a window system processing device} for refreshing the graphic display by producing the graphic display data based on the original data for the graphic display, a power on resuming device for returning the data held in the second storing device to {HEAD ~ the first storing device}, and a refresh requesting device for requesting the window system processing device to refresh graphic display after the data has returned to the first storing device 
The control unit may further comprise { TAIL ~ a window system processing device } for refreshing the graphic display by producing the graphic display data based on the original data for the graphic display , a power on resuming device for returning the data held in the second storing device to { HEAD ~ the first storing device } , and a refresh requesting device for requesting the window system processing device to refresh graphic display after the data has returned to the first storing device
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH