| Acronym | Meaning |
| PRI | Primary-Rate Interface |
| VSA | Virtual Storage Architecture |
| JDK | Java Developers (Development) Kit |
| RADSL | Rate-Adaptive Digital Subscriber Line |
| CSU | Channel Service Unit |
| PCS | Personal Communications System |
| OC | Optical Carrier |
| MIF | Management Information Format |
| DVD-ROM | Digital Versatile (Video) Disc - Read Only Memory |
| TTL | Transistor-Transistor Logic |