| Acronym | Meaning |
| MDRS | Mission Data Retrieval System |
| ATE | Automated Test Equipment |
| EODB | End Of Data Block |
| PKD | Programmable Keyboard And Display |
| RMS | Root Mean Square |
| PMI | Preventive Maintenance Inspection |
| CIM | Computer Input Multiplexer |
| DBGMP | DBNData Bus Network |
| IEA | Integrated Electronic Assembly |
| EKG | Electrocardiograph (Instrument) |