| Abbreviation | Definition |
|---|---|
| HDMI | High Definition Multimedia Input |
| HDO | Hard Disk Only |
| HDP | High-Definition Plasma |
| HDR | Hard Drive Repeat |
| HDRI | High-Dynamic Range Imaging |
| HDS | High Density Storage |
| HDST | Hybrid Dual Sensor Technology |
| HDT | Hardware Detection Tool |
| HDTVI | High Definition Transport Video Interface |
| HDU | Hard Disk Unit |
| HDVS | High Definition Video System |
| HEC | High-End Computer |
| HELT | Hardware Estimated Life Test |
| HES | Hardware Emulation Solution |
| HES | High-Efficiency Speaker |
| HET | High-End Timer |
| HFD | Hardware Freedom Day |
| HFS | Hardware Function Scan |
| HFS | Heat Sink Fan |
| HGA | Hardware Group Association |