Abbreviation for electromagnetic radiation hazards.

1. Electronic Message System,
2. Element Management System.

Acronym foremanations security.

Emergency Telecommunications

To duplicate the functions of one system with a different system, so that the second system appears to behave like the first system.
Note: For example, a computer emulates another, different computer by accepting the same data, executing the same programs, and achieving the same results.

Abbreviation for electromagnetic vulnerability.

Enterprise Network

Signaling in which address digits are transmitted in one or more blocks, each block containing sufficient address information to enable switching centers to carry out progressive onward routing.

When applied to privilege: a privilege that is active, i.e., has its effective flag set [POSIX.6].

A signal that permits the occurrence of an event.