| Acronym | Meaning |
| DCOP | Displays |
| PLD | Program Listing Document |
| CEA | Control Electronics Assembly (for MMU) |
| I | DPS Interface Digital Processor |
| L | Lumen |
| ABHRS | As Built Hardware Reporting System |
| CMD | Command |
| LFRR | Low Frequency Radio Range |
| EM | Exception Monitor |
| VAA | Viewpoint Adapter Assembly |