| Acronym | Meaning |
| OPS | Onboard Payload Support |
| PACX | Private Automatic Computer Exchange |
| PFA | Prime Factor Algorithm |
| ESDIM | Earth System Data And Information Management |
| D/RADEX | Digital Radar Experiment |
| ABS-SC | Automatic Backup Shutdown Of Safety Computer |
| GFS | Global Forecast System |
| GPP | Gross Primary Productivity |
| SUB-MM | Submillimeter Spectrometer |
| SSD | Cray's Solid-state Storage Device On The CRAY X-MP/48 Computer |