| Acronym | Meaning |
| GCOS | Ground Computer Operating System |
| IPS | Interconnecting Station |
| FASCOS | Flight Acceleration Safety Cutoff System |
| HIM | Hardware Interface Module |
| SCF | Sunnyvale Control Facility |
| VAT | Vibro-Acoustic Test |
| PTT | Push-to-Talk |
| SIM | Simulate |
| ROS | Removable Overhead Structure |
| IED | Interacting Equipment Documents |