E - Return to Index

EAGE - Is Electrical Aerospace Ground Equipment.

ECD - Refers to an Enhanced Color Display.

ECOMMERCE, E-commerce, or E-COMMERCE - Is business conducted over the internet. Popular applications include but are not limited to: licensing software, selling music and books, financial market transactions, and universal learning.

ECP - Refers to Extended Capabilities Port.

Eccentricity - Refers to a factor used to describe the geometric shape of an ellipsis or an elliptical orbit. As eccentric approaches 0 the shape approaches that of a circle as eccentricity approaches 1 the shape approaches a straight line.

EDC - Is the EROS Data Center.

EDP - Refers to Electronic Data Processing.

EEO - Refers to an Elliptical Earth Orbit.

EEPROM - Refers to Electrically Erasable Programmable Read-Only Memory..

EFF - Refers to Electronic Frontier Foundation. It is an organization dedicated to "protecting rights and promoting freedom on the electronic frontier."

EGA - Refers to an Enchanced Graphics Adapter.

EIDE - Refers to Enhanced Integrated Drive Electronics.

EISA - Is the Extended Industry Standard Architecture.

Elliptical Earth Orbit - Refers to orbits that the satellite path describes an ellipse with the Earth at one focus.

ELV or ELVs - Refer to Expendable Launch Vehicles.

EMC - Refers to Electro-Magnetic (electromagnetic) Compatibility.

EMI - Refers to Electro-Magnetic (electromagnetic) Interference.

EMM - Is an Expanded Memory Manager. This software utility helps to emulate memory greater than the conventional memory limitation of 640KB.

EMS - Is Expanded Memory Specification.

emu - Is an emulator.

emulator - Refers to a computer program that simulates another system or CPU.

Encrypts or Encryption - Refers to the coding of information which conceals its ready usage or transparency. Encryption is viewed as necessary for transmitting sensitive information such as financial, medical, personal, corporate, legal, military, governmental, and other dimensions of an individual or institution.

End to End - Is a characteristic of a protocol that operates on the origin and the final destination, but not on any intermediaries.

EOS - Refers to an Earth Observing System.

EOSDIS - Refers to an EOS Data and Information System.

EPP - Refers to Enhanced Parallel Port. This design improves bi-directional data flows. SCSI adapters and networks are two examples that make use of this feature.

EPS - Refers to the Encapsulated Postscript. See postscript.

EROS - Refers to an Earth Resource Observation System.

ESD - Refers to Electro-Static (electrostatic) discharge.

ESDI - Is an Enhanced Small/System Device Interface.

ESQL - Refers to the Enhanced Sequential Query Language.

Ethernet - Refers to a LAN using CSMA/CD access and a shared bus. Traditional ethernet, 10-BaseT, operates at a theoretical maximum throughput of 10Mbps. Fast Ethernet, 100-BaseT, operates at a theoretical maximum of 100Mbps.

EU - Is an Engineering Unit.

Exclusive OR - A logical condition where the either the first statement is true or the second. Both facts are not true and both are not false. Exculsive OR is synonymous with NOT AND.

Expanded Memory - Refers to usable RAM in excess of 1 MB. Not all applications can run or take advantage of this expanded memory.

Expansion Bus - Is the capacity of the microprocessor to communicate with controllers for peripheral devices. These devices include hard drives and keyboards.

Expression Tree - See Decision Tree.

Extended Memory - Refers to RAM above 1 Meg.

External Cache - Refers to a RAM cache using SRAM instead of DRAM chips. This enables the microprocessor to retrieve data more quickly than from RAM.

Eyeballs or Eye Balls - Refers colloquially to the number of viewers at a site.

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