| Acronym | Meaning |
| LPT | Local Printer Terminal |
| SNMP | Simple Network Management Protocol |
| SYN | Synchronize Sequence Number |
| ATL | Active (ActiveX) Template Library |
| CTR | Click-Through Ratio |
| PLA | Programmable Logic Array |
| PERL | Practical Extraction And Report Language |
| OC | Optical Carrier |
| HAL | Hardware Abstraction Layer |
| XDSL | X Digital Subscriber Line |