| Acronym | Meaning |
| SPID | Service Profile (Provider) Identification |
| WDM | Wavelength Division Multiplexing |
| CYMK | Cyan Yellow Magenta Black (Key) |
| JPEG | Joint Photographic Experts Group |
| DOS | Disk Operating System |
| SVGA | Super Video Graphics Array |
| DSU | Data Service Unit |
| MAE | Metropolitan Area Exchange (Ethernet) |
| HD | High Density |
| QCIF | Quarter Common Intermediate Format |