Do you also promise to put your iPad in Shaimos when it becomes unusable? If its full of Torah then it needs to be buried with Shaimos
According to Rav Ovadiah Yosef items stored on a computer are not STAM.
Any Alef you see on a computer is not really an Alef, but a computer representation of an Alef, so there is no need for shamos for computer equipment that might have shaimos stored on it