| Acronym | Meaning |
| BPI | Bits Per Inch |
| PPU | Peripheral Processor Unit |
| GDP | Ground Data Processor |
| AQSM | Air Quality Simulation Model |
| BSR | Budget Surplus Report |
| MDDS | Maintenance Decision Support System |
| SIPI | Scientists' Institute For Public Information |
| INSTAAR | Institute For Arctic And Alpine Research |
| JMG | Joint Meteorological Group |
| EEMOC | European EMOC |