| Acronym | Meaning |
| EOR | Earth Orbit Rendezvous |
| DIP | Display Interface Processing (Processor) |
| FUNCT | Functional |
| NAS | National Aircraft Standard |
| DAS | Digital Address System |
| HAC | Heading Alignment Cylinder |
| ETM | ElaPsed Time Meter |
| SMS | Shuttle Mission Simulator |
| IPS | IRAN Inspection And Repairs As Necessary |
| TC | Test Conductor (Contractor) |