SCREEN SAVER AND DISPLAY DATA MANAGEMENT SYSTEM FOR THE SAME, SIMPLE IMAGE DATA BASE, AND DISPLAY SCREEN SECRECY HOLDING SYSTEM

摘要

PURPOSE:To prevent partial or entire sticking due to an afterimage of a picture on a CRT display by displaying a main still picture on the CRT display. CONSTITUTION:A main memory resident program measures the stagnation time of normal transation, which is saved on a main memory and erased from a screen; and a necessary still picture window and a message window which is moved by clipping in a necessary direction at the same time are displayed, and music or a voice is outputted. The display is switched to a next necessary still picture window after the necessary display time of one still picture window lapses and as the normal transaction is restarted, the necessary still picture window and a subordinate window for movement messages are erased; and the output of the music or speech is stopped and the normal transaction screen which is saved is reloaded.