| Acronym | Meaning |
| DTD | Document Type Definition |
| MUD | Multiple User (or Multi-User) Dungeon (Dimension) |
| AIX | Advanced Interactive Executive |
| PCMCIA | Personal Computer Memory Card International Association |
| RGB | Red Green Blue |
| WYSIWYP | What You See Is What You Print |
| RJ-45 | Registered Jack-45 |
| ESDI | Enhanced System Device Interface |
| RSN | Real Soon Now |
| OPENSRS | Open Shared Registration System |