| Acronym | Meaning |
| TTL | Transistor-Transistor Logic |
| HPAS | Hypermedia Presentation And Authoring System |
| PCS | Personal Communications System |
| RJ-45 | Registered Jack-45 |
| VPN | Virtual Private Network |
| BASIC | Beginners All-purpose Symbolic Instruction Code |
| BSC | Base Station Controller |
| T3 | T-Three - Carrier Signal (communications) |
| PDL | Page Description Language |
| TTF | True Type Font |