| Acronym | Meaning |
| DOS | Disk Operating System |
| FDSC | Flight Dynamics Situation Complex |
| REFRIG | Refrigerate |
| ISPG | Institutional Support Planning GrouP |
| INTV | Interim Hypersonics Test Article |
| ERSIR | Earth Resources Shuttle Imaging Radar |
| LPDM | List Of Physical Dimensions |
| MTEO | Optical Maintenance Test Equipment |
| FCA | Fluids Control Assembly |
| APS | Acquisition Processor Subsystem |