Glossary - Index E

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ECC: Error Correcting Code - A method of generating redundant information which can be used to detect and correct errors in stored or transmitted data.

EDO: Extended Data Output - a type of random access memory (RAM) chip designed to improve the time to read from memory on faster microprocessors such as the Intel Pentium.

EEPROM: Electronically Eraseable Programmable Read Only Memory - like ROM cannot be erased unless it recieves proper erasing signals from the mother deivce. Commonly used for BIOS's of motherboards.

EMI: Electromagnetic Interference - A form of electronic radiation which can potentially corrupt data transfer.

Emulator: Emulation or an emulator refers to the ability of a computer program or electronic device to emulate (imitate) another program or device. Many printers, for example, are designed to emulate Hewlett-Packard LaserJet printers because so much software is written for HP printers. If a non-HP printer emulates an HP printer, any software written for a real HP printer will also run in the non-HP printer emulation and produce equivalent printing.

End User: The end user of a computer system is someone who operates the computer, as opposed to the developer of the system who creates new functions for end users.

ESD Strap: A device that plugs into a standard outlet which discharges static electricity from a person.

Ethernet: The most widely-installed local area network technology. An Ethernet LAN typically uses coaxial cable or special grades of twisted pair wires.