| Abbreviation | Definition |
|---|---|
| EMS | Expanded Memory Services |
| EMS | Expanded Memory Specification |
| EMUG | European MAP Users Group |
| EN | European Norme |
| ENC | Eisenhower National Clearinghouse |
| ENE | Enterprise Network Event |
| ENIA | Engineering For Next Internetworking Applications |
| ENIAC | Electronic Numerical Integrator And Computer |
| ENP | Enable Presentation |
| ENQ | Enquiry |
| ENTNET | International Enterprise Networking and Services Conference |
| EO | Eight Ones |
| EOB | End of Block |
| EOB | End Of Buffer |
| EOC | End of Cylinder |
| EOE | Execution Only Environment |
| EOF | End Of Field |
| EOF | End Of Files |
| EOGM | Extra Ordinary General Meeting |
| EOH | End of Heredoc |