| Acronym | Meaning |
| HSL | Hypermedia Synchronization Language |
| NSFNET | National Science Foundation Network |
| SIMD | Single Instruction Multiple Data |
| PVC | Permanent Virtual Circuit |
| CYA | Cover Your Ass |
| BEOS | Be, Inc. Operating System |
| PGP | Pretty Good Privacy |
| NNTP | Network News Transfer Protocol |
| VTAM | Virtual Telecommunications Access Method |
| I/O | Input/Output |