| Abbreviation | Definition |
|---|---|
| RAS | Reliability Availability And Serviceability |
| RAS | Results Of About Search |
| RAT | Random Access Texture |
| RAVE | Rasterization Acceleration Virtual Engine |
| RAVE | Real Animated Vector Effects |
| RAVE | Renderer Accelerated Virtual Engine |
| RB | Registry Backup |
| RB | Rounded Box |
| RBD | Rho Binding Domain |
| RBH | Random Button Hitter |
| RBR | Red Button Reboot |
| RBUA | Residential Broadband Users' Association |
| RC | Rendering Context |
| RC | Robot Control |
| RC | Run Control |
| RCA | Rollback Compensated Alerter |
| RCB | Randomized Complete Block design |
| RCB | Rotated Checker Board |
| RCD | Ralf Change Directory |
| RCL | Recognition Configuration Language |