| Acronym | Meaning |
| XMI | XML Metadata Interchange |
| MATHML | Mathematical Markup Language |
| IRQ | Interrupt Request |
| XMS | Extended Memory Specification |
| PIO | Programmed Input Output |
| XUL | XML-based User Interface Language |
| AMPS | Advanced Mobile Phone System |
| USR | US Robotics |
| EMS | Expanded Memory Specification |
| LED | Light Emitting Diode |