Sorry for the incomplete information on my previous response, after doing a
little more checking this is the textbook answer. The Z-7000 never "Shuts
Off" it only "Sleeps." The power to the screen shuts off and input is
deactivated but the ram retains all information while the unit sleeps. When
you "turn it on," you find yourself exactly where you last left off, the
software does not have to "boot up" again.
Scott CASIO Tech Support