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E CKInfo Items

Computer Knowledge information pages for terms starting with the letter E.

EAP - Extensible Authentication Protocol

(E-A-P) This is an extension of the PPP protocol. The extension provides for general authentication via a variety of methods: passwords, digital certificates, public-key authentication, and more. More Information RFC 2284 Microsoft Reference

EBCDIC - Extended Binary Coded Decimal Interchange Code

(eb-see-dick) A code used to represent up to 256 individual characters. Used primarily by IBM mainframes, EBCDIC is not often seen today except in the IBM world and in some devices that must "talk" to the IBM world. Despite it being an IBM product...

ECC - Error Correction Code (Error Checking and Correction)

(E-C-C) Often used with computer memory (but not exclusive to memory), ECC involves special circuitry/software to test data in transit and assure its accuracy. Methods can be as simple as adding a parity bit or performing a cyclic redundancy check...

ECN - Explicit Congestion Notification

(E-C-N) (Adapted from RFC 2481) TCP is currently the dominant transport protocol used in the Internet. TCP uses packet drops as an indication of congestion. With the addition of active queue management (e.g., RED) to the Internet infrastructure, r...

EDGE - Enhanced Data Rates for Global Evolution

(edge) A boost that increases data throughput for GSM and TDMA systems to 385K bps. More Information Ericsson Info Page

EDI - Electronic Data Interchange

(E-D-I) Any of many methods used to allow one computer to exchange data with another computer without the need to manually enter the data into the receiving computer. For critical data, a third, trusted computer may be used as an intermediary. Thi...

EDLC - Electrochemical Double-layer Capacitor

(E-D-L-C) A storage capacitor type often used in place of a battery. In power it is between high-energy, low-power batteries and low-energy, high-power electrolytic capacitors. EDLCs have a wide operating temperature range and can be cycled many t...

EDO RAM - Extended Data-Out Random Access Memory

(E-D-O-ram) This is a specialized form of DRAM. It's overall design speeds memory access over DRAM by anticipating the location of a memory access following the current one and setting up the chip to process subsequent memory requests at the same ...

EDP - Electronic Data Processing

(E-D-P) Overall acronym for most any use of computers.

EDRAM - Enhanced Dynamic Random Access Memory

(E-D-ram) Another form of DRAM that includes an SRAM cache on the chip. This allows frequently accessed data to be obtained faster. (Also known as CDRAM.)

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