| Abbreviation | Definition |
|---|---|
| RTI | Run Time Infrastructure |
| RTKS | Real Time Knowledge Service |
| RTM | Request Transmitting Machine |
| RTM | Resident Task Manager |
| RTM/SF | Realtime Monitor / Systems Facility |
| RTOS | Real Time Operating System |
| RTP | Realtime Transport Protocol |
| RTP | Run Time Package |
| RTR | Real Time Reliable |
| RTS | Real Time Simulation |
| RTS | Real Time System |
| RTSE | Reliable Transfer Service Element |
| RTSE | Run Time Support Environment |
| RTSL | Real- Time Specification Language |
| RTU | Real- Time Unit |
| RTW | Real Time Workshop |
| RU | Reader User |
| RUE | Resource Utilization Explorer |
| RUF | Rice Unix Facility |
| RUG | Rangefinder User Group |