| Acronym | Meaning |
| GPS | Geophysical Processor System |
| BCD | Binary-coded Decimal |
| EDUCOM | A Consortium Of Industrial Organizations And University Computing Administrators |
| JCS | Joint Chiefs Of Staff |
| ACIS | Academic Information Systems |
| MILNET | Military Network |
| HF | High Frequency |
| ALERT | Automated Local Evaluation In Real Time |
| FTS | Federal Telecommunications System |
| DEA | Drug Enforcement Administration |