| Abbreviation | Definition |
|---|---|
| ECA | Electrical Control Assembly |
| ECA | Electronic Control Assembly |
| ECEA | Early Childhood Education Assembly |
| ECL | Executive Command Level |
| ECT | Electronic Computer Telecom |
| EDB | Expected Data Block |
| EDD | Erroneous Decimal Digits |
| EDR | Execute Destructive Read |
| EE | Enter Exponent |
| EEE | Environment Embedding Executable |
| EEOIFNO | Execute Every Other Instruction From Now On |
| EEP | Erase Entire Program |
| EERA | East of England Regional Assembly |
| EET | End Event Time |
| EF | Eject Fix |
| EF | Erase Flash |
| EF | Error Field |
| EF | Exist Flag |
| EFB | Emulate Five-volt Battery |
| EFE | Emulate Fatal Error |