| Acronym | Meaning |
| ETI | Elapsed Time Indicator |
| NSTL | National Space Technology Laboratories |
| NVR | Nonvolatile Residue |
| MDCA | Main Distribution Control Assembly |
| CKAFS | Cape Kennedy Air Force Station (Changed To CCAFS) |
| LCU | Inertial Components Temperature Controller |
| NET | NNET Network (N/W Preferred) |
| CV | Coefficient Of Variation |
| UCC | Universal Checkout Console |
| POM | Printer OutPut Microfilm |