| Acronym | Meaning |
| WCS | World Coordinate System |
| RADIUS | Remote Authentication Dial-In User Service |
| EXIF | Exchangeable Image File |
| DSVD | Digital Simultaneous Voice And Data |
| A/V | Audio/Visual |
| AIFF | Audio Interchange File Format |
| UAC | User Account Control |
| TTF | True Type Font |
| HDTV | High-Definition Television |
| DTE | Data Termination (Terminal) Equipment |