| Acronym | Meaning |
| COM | Component Object Model |
| BRI | Basic-Rate Interface |
| APM | Advanced Power Management |
| IAS | Internet Authentication Service |
| PCM | Pulse Code Modulation |
| OLE | Object Linking And Embedding |
| IMAP | Internet Message Access Protocol |
| DXF | Data Exchange File (Format) |
| NCSA | National Center For Supercomputing Applications |
| PQDIF | Power Quality Data Interchange Format |