| Acronym | Meaning |
| OSF | Open Software Foundation |
| ABC | Atanasoff-Berry Computer |
| ATA | AT Attachment |
| HFS | Hierarchical Filing System |
| WPA | Wi-Fi Protected Access (WPA And WPA2) |
| EDI | Electronic Data Interchange |
| BPL | Bits Per Line |
| ULSI | Ultra Large Scale Integration |
| ESP | Encapsulating Security Payload |
| ODBC | Open Database Connectivity |