| Acronym | Meaning |
| SMDS | Switched Multimegabit Data Services |
| CIR | Committed Information Rate |
| WATS | Wide Area Telecommunications System |
| EBCDIC | Extended Binary Coded Decimal Interchange Code |
| HSM | Hierarchical Storage Management |
| MAE | Metropolitan Area Exchange (Ethernet) |
| AMANDA | Advanced Maryland Automatic Network Disk Archiver |
| ALU | Arithmetic (and) Logic Unit |
| MILNET | Military Network |
| CYMK | Cyan Yellow Magenta Black (Key) |