| Acronym | Meaning |
| XMI | XML Metadata Interchange |
| DEBI | DMA Extended Bus Interface |
| MVS | Multiple Virtual Storage |
| CHRP | Common Hardware Reference Platform |
| DES | Data Encryption Standard |
| PSTN | Public Switched Telephone Network |
| TSAPI | Telephony Service API |
| CODEC | Compression/Decompression |
| VCPI | Virtual Control Program Interface |
| TANSTAAFL | There Ain't No Such Thing As A Free Lunch |