| Acronym | Meaning |
| CISC | Complex Instruction-Set Computing |
| L2TP | Layer Two Tunneling Protocol |
| CERT | The CERT Coordination Center |
| DLC | Data Link Control |
| MIB | Management Information Base |
| MUD | Multiple User (or Multi-User) Dungeon (Dimension) |
| WAP | Wireless Application Protocol |
| PCS | Personal Communications System |
| PICNIC | Problem In Chair, Not In Computer |
| PERL | Practical Extraction And Report Language |