| Acronym | Meaning |
| RPI | Rensselaer Polytechnec Institute |
| RCAG | Remote-controlled Air-to-ground |
| IMS | Information Management System |
| FLOP | Floating Point Operations |
| AL/PIRD | AL Personnel |
| PSCNET | Pittsburgh Supercomputing Center Network |
| DMMR | Distributed-Memory Microprocessor Systems |
| STS | Space Transportation System |
| UWI | Uniform Window Interface |
| BU | Bargaining Unit |