Technology terms starting with E

895 terms

E East
E & M signaling In telephony, an arrangement that uses separate leads, called the "E" lead and "M" lead, for signaling and supervisory purposes.
E 2 I See Endo- Exoatmospheric Interceptor.
E 2 SRD Effectively Two-System Requirement Document.
E 3 (1) Electromagnetic Environmental Effects. (2) Electrical, Electronic, and Electromechanical.
E layer See E region, ionosphere.
E REGION In solar-terrestrial terms, a daytime layer of the earth's ionosphere roughly between the altitudes of 85 and 140 km.
E Spec Materiel Specification.
E-2 Designation for Hawkeye aircraft.
E-bend A smooth change in the direction of the axis of a waveguide, throughout which the axis remains in a plane parallel to the direction of electric E-field…
e-cash Abbreviation for electronic cash. Data representing money, which data can be transferred by means of a computer network and can be traded as a token…
e-Commerce electronic commerce
e-mail Electronic mail or computer-based mail
E-mail Address The address used to reach someone via email. The format of an email address is user@domain. For example, my email address is email.guide@about.
E-mail address Appending Email address appending merges a database of email addresses with an existing marketer's database to add email as an additional means of contact to the…
e-mail addresses The addresses by which recipients (mailboxes, distribution lists, custom recipients, and public folders) are known to foreign systems. [Exchange 5.5]
E-mail client A program used to read and send email messages. As opposed to the email server, which transports mail, an email client is what the user interacts with.
e-mail exploder Synonym mail exploder.
E-mail server A program running at Internet Service Providers and large sites constantly connected to the Internet used to transport mail.
E-plane bend Synonym E-bend.
e-trade Synonym e-commerce.
e-zine Abbreviation for electronic magazine. A periodical publication that is stored on a file server and that may be distributed or accessed via a computer…
e.m.r.p. Abbreviation for effective monopole radiated power.
e.r.p. [or ERP] Abbreviation for effective radiated power.
EA enterprise architecture
EAC Estimated Cost at Completion.
EAD (1) Engineering Analysis and Design. (2) Extended air defense.
EAD/D Engineering, Analysis, Design and Development.
EADSIM Extended Air Defense Simulation.
EADTB Extended Air Defense Test Bed. An object-oriented simulation tool allowing users to model military response to airborne and ballistic missile threats.
EADTBP Extended Air Defense Test Bed Program.
EAGLE Extended Airborne Global Launch Evaluator.
EAM Emergency Action Message.
EAR Export Administration Regulations.
EAR file Enterprise Archive file. A JAR archive that contains a J2EE application.
Early Access Former term for First Customer Shipment (FCS). See "FCS."
Early Operational Assessment An operational assessment conducted prior to, or in support of, Milestone II.
Early User Test (EUT) A test employing representative users to examine materiel concepts, training or logistics planning, or inter-operability issues.
Early Warning (1) Early detection of an enemy ballistic missile launch, usually by means of surveillance satellites and long range radar.
Earnings Per Click Many contextual advertising publishers estimate their potential earnings based on how much they make from each click.
earth See ground.
Earth coverage (EC) In satellite communications, the coverage that occurs when the satellite-to-Earth beam is sufficiently wide to cover all of the surface of the Earth…
earth electrode subsystem A network of electrically interconnected rods, plates, mats, or grids, installed and connected, for the purpose of establishing a low-resistance contact…
Earth exploration-satellite service A radiocommunication service between Earth stations and one or more space stations, which may include links between space stations, in which: information…
earth ground See ground.
Earth Limb The apparent outer edge of the earth as viewed from space.
Earth Observation Satellite (EOS) An effort to study the earth as a system while tracking long-term changes on a global scale.
Earth station A station located either on the Earth's surface or within the major portion of the Earth's atmosphere and intended for communication: with one or more…
Earth terminal In a satellite link, one of the non-orbiting communications stations that receives, processes, and transmits signals between itself and a satellite.
Earth terminal complex In satellite communications systems, the assembly of equipment and facilities necessary to integrate an Earth terminal into a communications network.
EAS Abbreviation for extended area service.
ease of use An aspect of the assessment of the effectiveness of a Target of Evaluation, namely that it cannot be configured or used in a manner which is insecure but…
Easter Egg Hidden functionality within an application program, which becomes activated when an undocumented, and often convoluted, set of commands and keystrokes are…
Eastern Test Range (ETR) Beginning at Patrick AFB, FL, this range stretches halfway around the globe where it meets the Western Test Range.
Eavesdropping Surreptitiously obtaining data from an unknowing end user who is performing a legitimate function.
EB (1) Electron Beam. (2) Enhanced Blast.
EBB Electronic Bulletin Board.
EBCDIC Extended Binary Code Decimal Interchange Code.
EbN0 See signal-to-noise ratio per bit.
EBS Emergency Broadcast System
EBW Electron Beam Welding.
ebXML Electronic Business XML. A group of specifications designed to enable enterprises to conduct business through the exchange of XML-based messages.
EC See: Enzyme Commission number.
EC/EDI Electronic Commerce/Electronic Data Interchange
EC2 (Elastic Compute Cloud) EC2 stands for Amazon's Elastic Compute Cloud. Using EC2 you can launch instances (specific packages of dedicated compute resources) that look and feel…
EC2 compute unit An AWS standard for compute CPU and memory. This measure enables you to evaluate the CPU capacity of different EC2 instance types.
EC2 instance In Amazon EC2, this is simply an instance. Other AWS services use the term EC2 instance to distinguish these instances from other types of instances they…
ECAC Electromagnetic Compatibility Analysis Center.
ECAP (Enhanced Cartridge Access Port) an 80-cartridge enter/eject facility for a StorageTek robotic tape library. See CAP.
ECB Engineering Change Board.
ECC Eastern Colorado Area Office (Loveland, CO).
ECCM Electronic Counter-Countermeasures.
ECCST (Enhanced Capacity Cartridge System Tape) a double length tape cartridge with a nominal uncompressed capacity of approximately 800 Mbytes.
ECDs Element Control Directives.
Echo Energy back scattered from a target (precipitation, clouds, etc.) and received by and displayed on a radar screen.
echo area See scattering cross section.
echo attenuation In a communication circuit (4- or 2-wire) in which the two directions of transmission can be separated from each other, the attenuation of echo signals…
echo canceler See echo suppressor.
echo cancellation In a system, the reduction of the power level of an echo or the elimination of an echo.
echo check A check to determine the integrity of transmission of data, whereby the received data are returned to the source for comparison with the originally…
echo command A programming language command that causes an echo response from a computer to be displayed on a monitor or printer for analysis or monitoring of the…
echo effect See ghost.
echo line In computer systems, on a hard-output or display device, a line of information that verifies (reflects) data entered into the computer.
echo loss The ratio in dB of the power of a transmitted signal that is echo loss weighted (as specified in ITU-T Recommendation G.
echo path capacity The maximum echo path delay for which an echo canceler is designed to operate. [T1.508-1998]
echo path delay (EPD) The time in milliseconds (ms) between the incidence of a signal and the incidence of that signal's echo at a measurement point. [T1.255-1997]
echo return loss See return loss.
echo sounding The measurement of the depth of a body of water or the distance to an object in a body of water by measuring the time it takes sound or electromagnetic…
echo suppression The procedure by which characters entered into a system are not physically revealed [CESG].
echo suppressor A device for connection to a two-way telephone circuit to attenuate echo signals in one direction caused by signals in the other direction.
echoplex An echo check used in public switched networks operating in the full-duplex transmission mode, i.e., the two-way-simultaneous mode.
ECL (Execution Control List) An ECL is a feature accessed through the User Preferences dialog box that enhances security of your workstation data.
eclectic Derived from many sources. Some would say too many.
ECLS ERINT Command and Launch System.
ECM Enterprise content management.
ECN Engineering Change Notice.
ECO Engagement Control Orders.
ECP (1) Engineering Change Proposal. (2) Emergency Command Precedence.
ECPMO Electronic Commerce Program Management Office.
ECS Engagement Control Station (PATRIOT).