Technology terms starting with E

895 terms

EJB JAR file A JAR archive that contains an EJB module.
EJB module A deployable unit that consists of one or more enterprise beans and an EJB deployment descriptor.
EJB object An object whose class implements the enterprise bean's remote interface. A client never references an enterprise bean instance directly; a client always…
EJB server Software that provides services to an EJB container. For example, an EJB container typically relies on a transaction manager that is part of the EJB…
EJB server provider A vendor that supplies an EJB server.
EKV (1) Electromagnetic Kill Vehicle. (2) Exoatmospheric Kill Vehicle.
Elastic Block Store (EBS) Offers block level storage volumes for EC2 users. With Amazon EBS, users can decrease the risk of running into component failures as its feature…
elastic buffer 1. A buffer that has an adjustable capacity for data. 2. A buffer that introduces an adjustable delay of signals.
Elastic Compute Cloud (EC2) A web service that is central to Amazon’s cloud computing platform. It allows users to ‘rent’ from its resizable computing capacity and possibly…
elastic IP address A fixed (static) IP address that you have allocated in Amazon EC2 or Amazon VPC and then attached to an instance.
Elastic Load Balancing A web service that improves an application's availability by distributing incoming traffic between two or more EC2 instances. See Also http://aws.amazon.
Elastic MapReduce (EMR) Allows any AWS user to process large amounts of data using a hosted Hadoop framework. This feature runs on the EC2 and S3 infrastructure.
elastic network interface An additional network interface that can be attached to an instance. ENIs include a primary private IP address, one or more secondary private IP…
Elastic Range The stress range in which a material will recover its original form when the force (or loading) is removed.
ElastiCache Provides in-memory caching for web applications. Users can use this feature to retrieve information from in-memory caches faster than getting information…
electric field The effect produced by the existence of an electric charge, such as an electron, ion, or proton, in the volume of space or medium that surrounds it.
electrical length Of a transmission medium, its length expressed as a multiple or submultiple of the wavelength of a periodic electromagnetic or electrical signal…
electrically powered telephone A telephone in which the operating power is obtained either from a battery located at the telephone, i.e.
electro-optic detector Deprecated term. See optoelectronic.
electro-optic effect Any one of a number of phenomena that occur when an electromagnetic wave in the optical spectrum interacts with an electric field, or with matter under…
electro-optic modulator An optical device in which a signal-controlled element is used to modulate a beam of light.
electro-optical intelligence (ELECTRO-OPTINT) Intelligence information other than signals intelligence derived from the optical monitoring of the electromagnetic spectrum from ultraviolet (0.
electro-optics The technology associated with those components, devices and systems which are designed to interact between the electromagnetic (optical) and the electric…
Electro-Optics Infrared (EO/IR) Technologies/techniques employed by optical sensors in the wavelength spectrum slightly longer than visible but shorter than radio. 92
ELECTRO-OPTINT Acronym for electro-optical intelligence.
electrochemical recording Facsimile recording by means of a chemical reaction brought about by the passage of a signal-controlled current through the sensitized portion of the…
electrographic recording See electrostatic recording.
electroluminescence Nonthermal conversion of electrical energy into light. Note 1: Electroluminescence is distinguished from incandescence, which is a thermal process.
electrolytic recording Electrochemical facsimile recording in which the recorded copy is made by the passage of a signal-controlled current through an electrolyte which causes…
Electromagnetic Compatibility (EMC) A condition when all electromagnetic emissions from electronic, electro-magnetic, and electro-optical components of a system interact without interfering…
Electromagnetic Emanations Signals transmitted as radiation through the air, through a vacuum, or through conductors.
electromagnetic emission control The control of friendly electromagnetic emissions, such as radio and radar transmissions, for the purpose of preventing or minimizing their use by…
electromagnetic environment (EME) For a telecommunications system, the spatial distribution of electromagnetic fields surrounding a given site.
Electromagnetic Field (EMF) The electrical and magnetic fields created by the presence or flow of electricity in an electrical conductor or electricity consuming appliance or motor.
Electromagnetic Gun (EMG) A gun in which the projectile is accelerated by electromagnetic forces rather than by an explosion, as in a conventional gun.
Electromagnetic Interference (EMI) Any electromagnetic disturbance that interrupts, obstructs, or otherwise degrades or limits the effective performance of electronics/electrical equipment.
electromagnetic interference (EMI) control The control of radiated and conducted energy such that emissions that are unnecessary for system, subsystem, or equipment operation are reduced…
electromagnetic intrusion The intentional insertion of electromagnetic energy into transmission paths in any manner, with the objective of deceiving operators or of causing…
Electromagnetic Pulse (EMP) The electromagnetic radiation from a nuclear explosion caused by Comptonrecoil electrons and photoelectrons from photons scattered in the materials of the…
Electromagnetic Radiation (EMR) (1) A form of propagated energy, arising from electric charges in motion that produces a simultaneous wavelike variation of electric and magnetic fields…
electromagnetic radiation hazards (RADHAZ or EMR hazards) Hazards caused by a transmitter/antenna installation that generates electromagnetic radiation in the vicinity of ordnance, personnel, or fueling…
Electromagnetic Spectrum The entire range of wavelengths of electromagnetic energy, including (from short to long wavelengths) gamma rays, X rays, ultraviolet light, visible…
electromagnetic survivability The ability of a system, subsystem, or equipment to resume functioning without evidence of degradation following temporary exposure to an adverse…
electromagnetic susceptibility Of an electronic circuit or device, the degree to which it is subject to malfunction or failure under the influence of electromagnetic radiation.
electromagnetic vulnerability (EMV) The characteristics of a system that cause it to suffer a definite degradation (incapability to perform the designated mission) as a result of having been…
electromagnetic wave (EMW) A wave produced by the interaction of time-varying electric and magnetic fields.
Electromagnetics Application of electrical, electronic, and magnetic phenomena to develop devices used in system/subsystem design, excluding employment in the RF spectrum.
electromechanical recording Recording by means of a signal-actuated mechanical device.
Electronic Authentication (E-authentication) The process of establishing confidence in user identities electronically presented to an information system.
electronic bulletin board Synonym bulletin board.
electronic cash See e-cash.
electronic classroom Synonym teletraining.
electronic commerce See e-commerce.
Electronic Counter- Countermeasure s (ECCM) That division of electronic warfare involving actions taken to insure friendly effective use of the electromagnetic, optical, and acoustic spectra despite…
Electronic Counter- Countermeasures (ECCM) That division of electronic warfare involving actions taken to insure friendly effective use of the electromagnetic, optical, and acoustic spectra despite…
Electronic Countermeasure (ECM) That division of electronic warfare involving actions taken to prevent or reduce an enemys effective use of the electromagnetic spectrum.
electronic countermeasures (ECM) That division of electronic warfare involving actions taken to prevent or reduce an enemy's effective use of the electromagnetic spectrum.
Electronic Credentials Digital documents used in authentication that bind an identity or an attribute to a subscriber's token.
electronic data interchange See EDI.
electronic data processing System for recording and processing data on magnetic media.
electronic deception The deliberate radiation, reradiation, alteration, suppression, absorption, denial, enhancement, or reflection of electromagnetic energy in a manner…
electronic distribution In encryption, the distribution of keying materials among entities by means of an electronic communication.
electronic emission security 1. Those measures taken to protect all transmissions from interception and electronic analysis. 2.
electronic equipment enclosure (EEE) An enclosure housing telecommunications electronics equipment. It may consist of a weatherproof enclosure, equipment pad or an equipment hut.
Electronic Evidence According to Black's law dictionary, evidence is 'any species of proof, or probative matter, legally presented at the trial of an issue, by the act of…
electronic filing Capturing, indexing, and storing documents, both those that are born digital and those that have been digitized, in an electronic storage and retrieval…
Electronic funds transfer Electronic funds transfer (EFT) is the means by which financial institutions exchange billions of dollars every day without the physical movement of any…
Electronic Industries Association (EIA) A standards organization specializing in the electrical and functional characteristics of interface equipment.
electronic information processing system (EIP System) An assembly of computer hardware, software and firmware, configured for the purpose of processing, storing or forwarding information [CESG].
electronic information systems security (INFOSEC) The technical measures to ensure the security of information handled by communications, non-communications and computer systems [CESG].
electronic jamming See jamming.
Electronic Key Entry The entry of cryptographic keys into a cryptographic module using electronic methods such as a smart card or a key-loading device.
electronic key management system (EKMS) [An] interoperable collection of systems being developed by services and agencies of the U.S.
electronic line of sight The path traversed by electromagnetic waves that is not subject to reflection or refraction by the atmosphere. [JP 1-02]
electronic line scanning In facsimile, a method of scanning that provides motion of the scanning spot along the scanning line by electronic means.
electronic magazine See e-zine.
electronic mail transmission of messages, their metadata, and possible attachments over communications networks
electronic message system (EMS) A message system incorporating electronic mail to a central facility which then assumes responsibility for delivering the message in hard copy form.
electronic messaging service [A] service providing interpersonal messaging capability; meeting specific functional, management, and technical requirements; and yielding a…
electronic payment gateway Software and hardware interfacing merchants and credit-card authorization networks. [Mattila]
electronic publishing (e-publishing) The process of creating messages, distributing them, and reproducing them entirely online, often with a capability for feedback.
electronic reconnaissance The detection, identification, evaluation, and location of foreign electromagnetic radiations emanating from other than nuclear detonations or radioactive…
Electronic Record Information recorded in a form that requires a computer or other machine to process it and that otherwise satisfies the definition of a record.
electronic records Records consisting of data and information which is input, created, manipulated and/or stored on electronic media which show evidence of actions and…
electronic records management system A system consisting of software, hardware, policies, and processes to automate the preparation, organization, tracking, and distribution of records…
electronic records system any electronic, electro-magnetic, optical digital, or magneto-optic system used to create, process, receive, keep, and retrieve records.
electronic security environment The ESE defines the system in security terms, identifying boundaries of security significance. These boundaries may be: a. internal, i.e.
electronic signature A stamp added to mail messages, fields, or sections that verifies that the person who originated the message is the author and that no one has tampered…
electronic switching system (ESS) 1. A telephone switching system based on the principles of time-division multiplexing of digitized analog signals.
electronic till The part of e-commerce (electronic commerce) software that processes real-time credit card payments. [After Mattila]
electronic vaulting Disaster planning service that involves moving data over a network to a secure remote site according to an established schedule
electronic wallet A Web-browser plug-in that handles and stores a user's credit card and payment information. [Mattila]
Electronic Warfare (EW) Any military activity involving the use of electromagnetic and directed energy to control the electromagnetic spectrum or to attack the enemy.
Electronic Warfare (EW) Environments Electronic warfare environments result from radar and communications jamming and other related electromagnetic countermeasures and countercountermeasures .
electronic warfare support measures (ESM) That division of electronic warfare involving actions taken under direct control of an operational commander to search for, intercept, identify, and…
electronically controlled coupling (ECC) The coupling of a lightwave from one dielectric waveguide into another dielectric waveguide upon the application of an electric field or electrical signal.
electronically generated key [A] key generated in a COMSEC device by introducing (either mechanically or electronically) a seed key into the device and then using the seed, together…
Electronics Intelligence (ELINT) Technical and geo-location intelligence derived from foreign non-communications electromagnetic radiations emanating from other than nuclear detonations…
Electronics Security (ELSEC) The protection resulting from all measures designed to deny unauthorized persons information of value that might be derived from their interception and…
electrophotographic recording Recording in which light is used to produce a change in electrostatic charge distribution to form a photographic image.