If you display a file on the screen and someone deletes the file, it also disappears from the screen. If a disk has got encrypted files, you are automatically asked for a password when you try to access it. No matter what kind of computer disk it is, it'll be readable by any system put into it. The more high-tech the equipment, the more buttons it has. However, everyone must be brilliant, since the buttons are never labeled.
Computers never crash during key, high-intensity activities.
Humans operating computers never make mistakes under stress. Ultimate HTML site. A bunch of links, and a documented search engine. Search central, search for everything at once. All the ISP's everywhere.