| Acronym | Meaning |
![](file.png) | CSU | Computer Software Unit |
![](file.png) | CIDS | Critical Item Development Specification |
![](file.png) | QPL | Qualified Parts List |
![](file.png) | MASS | Model 901 Applications And System Software |
![](file.png) | DRD | Data Requirements Description |
![](file.png) | FQT | Formal Qualification Testing |
![](file.png) | APSE | Ada Program Support Environment |
![](file.png) | GFI | Ground Fault Interrupter |
![](file.png) | ADP | Automatic Data Processing |
![](file.png) | RT | Remote Terminal |