| Abbreviation | Definition |
|---|---|
| QID | Quad Information Display |
| QIO | Quick Input/Output |
| QMK | Quantum Mechanical Keyboard |
| QP | Quad Picture |
| QPA | Quad Port Acceleration |
| QPI | QuickPath Interconnect |
| QPJ | QuickPanel Junior |
| QPM | Quad Port Module |
| QPS | QuadraPole Surround speaker |
| QQU | Quantum QHM (Quadraphonic Headphones with Microphone) USB (Universal Serial Bus) |
| QSI | Quad Serial Input/Output Card |
| QSIC | Quad Serial Input/Output Card |
| QSOP | Quad Small-Outline Package |
| QSV | Quick Sync Video |
| QVP | Quad Video Processor |
| QWERTY | Standard computer or typewriter keyboard |
| QXU | Quad Expansion Unit |
| R | Reset |
| RACL | Reduced ASIC (Application Specific Integrated Circuit) Cell Library |
| RAM | Reliability, Availability, and Maintainability |