| Acronym | Meaning |
| IRDA | Infrared Data Association |
| JPEG | Joint Photographic Experts Group |
| PBX | Private Branch Exchange |
| PGP | Pretty Good Privacy |
| RLL | Run Length Limited |
| MPI | Message Passing Interface |
| WNIU | Wireless Network Interface Unit |
| WIMP | Windows, Icons, Menus And Pointing Device |
| ESC | Escape Character |
| OPSEC | Open Platform For Secure Enterprise Connectivity Alliance |