METHOD OF DATA BACK-UP OF COMPUTER

determining whether the on-off time is set, in state of that the power on-off time is set on a externer timer, and determining whether the power is on during the on-time, when the on-off time is set; operating the computer and arbitratrily inputting the data backup time and process order when the power is on; determining whether the time of the timer reaches the back-up time, and stand-bying the computer when not reaching or executing the back-up order when reaching; executing the process order inputted by user when the back-up is executed, and storing the state occured during the process of order in a file; and turning off the computer when the back-up and order execution is finished.