| Acronym | Meaning |
| WOSA | Windows Open Services Architecture |
| PSTN | Public Switched Telephone Network |
| EPP | Enhanced Parallel Port |
| APA | All Points Addressable |
| DPI | Dots Per Inch |
| HMD | Head-Mounted Display |
| PKI | Public Key Infrastructure |
| PHB | Photochemical Hole Burning |
| SMP | Symmetric Multiprocessing |
| HTTPD | Hypertext Transfer Protocol Daemon (Server) |