| Abbreviation | Definition |
|---|---|
| EPOC | Elevated Package Over CSP |
| EPON | Ethernet Passive Optical Network |
| EPOW | Early Power Off Warning |
| EPP | Enhanced Parallel Port |
| EPP | Enhanced Performance Profile |
| EPS | Electrical Power System |
| EPS | Electronic Programming System |
| EPS | Energy Panel Structure |
| EQPT | Equipment |
| ERDI | Enhanced Remote Defect Indication |
| ERIC | Enhanced Remote Insight Card |
| ES | Energy Saving mode |
| ESA | Extended Service Agreement |
| ESA | Extended Straight Attachment |
| ESB | Embedded Sensor Board |
| ESB | Emergency Switch Board |
| ESC | Electronic Speed Controller |
| ESC | Epson Standard Code |
| ESC | ESCape (key) |
| ESC | Extended Systems Control |