| Acronym | Meaning |
| SDC | Super Data Coder |
| POM | Program Objective Memorandum |
| CATC | Carrier Air Traffic Control Center |
| TE | Training Equipment (device) |
| STDL | Submarine Tactical Data Link Program |
| DRLMS | Digital Radar Landmass Simulator |
| NUD | Non-update |
| PCB | Printed Circuit Board |
| XCHANGR | Exchanger |
| FTS | Federal Telecommunications System |