| Acronym | Meaning |
| PM | PMATPage Map Address Table |
| SMR | Source, Maintenance, And Recoverability |
| TW | Thumbwheel |
| MAC | Main Display Console |
| IAV | Inventory Adjustment Voucher |
| SLI | ERNO Spacelab Integration And Test |
| DI | Display Interface Processor (Software Functional Element) |
| D | LSC Data Link Transmission Repeater |
| SPCU | Simulation Process Control Unit |
| R | Range Rate |