1. Word processors never display a cursor.
2. You never have to use the space-bar when typing long sentences.
3. All monitors display inch-high letters.
4. High-tech computers, such as those used by NASA, the CIA, or some such governmental institution, will have easy to understand graphical interfaces. Those that don't, have incredibly powerful text-based command shells that can correctly understand and execute commands typed in plain English.
5. You can gain access to any information you want by simply typing "ACCESS ALL OF THE SECRET FILES" on any keyboard.
6. Likewise, you can infect a computer with a destructive virus by simply typing "UPLOAD VIRUS" (see "Fortress").
7. All computers are connected. You can access the information on the villain's desktop computer, even if it's turned off.
8. Powerful computers beep whenever you press a key or whenever the screen changes. Some computers also slow down the output on the screen so that it doesn't go faster than you can read. The *really* advanced ones also emulate the sound of a dot-matrix printer.
9. All computer panels have thousands of volts and flash pots just underneath the surface. Malfunctions are indicated by a bright flash, a puff of smoke, a shower of sparks, and an explosion that forces you backwards.
10. People typing away on a computer will turn it off without saving the data.