| Acronym | Meaning |
| OFS | OrbiterFunctionalSimulator |
| DDDU | Digital Decoder Driver Unit |
| KB | Keyboard |
| CAU | Customer Acquisition Unit |
| SEB | Support Equipment Building |
| PCO | Program Controlled Output |
| SATAF | Shuttle Activation Task Force |
| SES | SPecial Emphasis Study |
| TIROS | ToPographical Infrared Operations Satellite |
| OVFL | Overf Low |