| Acronym | Meaning |
| GRID | Graphic Retrieval And Information Display |
| DRIRU | Dry Rotor Inertial Reference Unit |
| IVA | Intravehicular Activity |
| VIDD | Vertical Interval Data Detector |
| CIG | Communications And Interface Group |
| GYRO | Gyroscope |
| SMG | Superconduction Magnetic Energy Storage |
| D/C | DisplaYs/Controls |
| PALS | Precision Approach And Landing SYstem |
| CSDT | COMPuter Software Data Tapes |