| Abbreviation | Definition |
|---|---|
| FTM | Flat Tension Mask |
| FTMA | Fault Tolerant Machine Architecture |
| FTMF | FirstTouch Multi-Function |
| FTMP | Fault-Tolerant Multi-Processor |
| FTMR | Functional Triple Modular Redundancy |
| FTOL | Fault Tolerant |
| FTS | Fault Tolerant System |
| FTSAA | ftServer Access Adapter |
| FTTB | Fiber To The Building |
| FU | FLIP |
| FUCKED | Failed Under Calibration; Known Electrical Defect |
| FUCT | Failed Under Continuous Test |
| FUMO | Firmware Update Management Object |
| FX | Faster and Xtended |
| G | form G (polar break; break) contacts |
| G | Gate |
| G | Grid |
| GaAsP | Gallium Arsenide Phosphide |
| GAC | Global Assembly Cache |
| GANT | Global Area Network Technician |