| 5. | No one but their creator understands their internal logic. |
| 4. | Even your smallest mistakes are immediately committed to memory for future reference. |
| 3. | The native language used to communicate with other computers is incomprehensible to everyone else. |
| 2. | The message,"Bad command or filename," is about as informative as "If you don't know why I'm mad at you, then I'm certainly not going to tell you." |
| 1. | As soon as you make a commitment to one, you find yourself spending half your paycheck on accessories for it. |