| Acronym | Meaning |
| ESC | Escape Character |
| OSI | Open System Interconnection |
| WP | WordPerfect |
| WRAM | Windows Random Access Memory |
| VMS | Virtual Memory System |
| MS-DOS | Microsoft Disk Operating System |
| RFC | Request For Comments |
| ATM | Asynchronous Transfer Mode |
| MAN | Metropolitan Area Network |
| TSR | Terminate-and-Stay-Resident |