http://www.gateway2000.com/support/custserv/glossary/e.htm (Amiga Plus Extra No. 5/97, 05/1997)

The s

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*ECP*		Enhanced Communication Port [Microsoft]. Also referred to as Extended Capabilities Port. Improves I/O performance for LPT ports, IRQs and/or DMA settings.
*ECC Memory*		Error Checking and Correcting Memory. Advanced type of memory that can find and correct certain types of single-bit memory errors, providing greater data integrity. Advanced ECC can correct some double-bit errors.
*ECU*		EISA Configuration Utility. The ROM-based setup program for EISA computers.
edge connector		The connector along the bottom edge of an expansion card, that fits into the expansion slot.
edge-triggered interrupt		An interrupt that is triggered by a transition between high and low voltage, regardless of the direction of the transition. Compare level sensitive interrupt.
*EDO memory*		Extended Data Out memory. A newer, faster type of asynchronous computer memory that holds its last-requested data in a cache after releasing it.
EEMS		Enhanced Extended Memory Specification. An improved version of EMS. The improvements are now part of EMS version 4.0. See expanded memory
EEPROM		Electrically Erasable Programmable Read Only Memory. Can be erased while still on the circuit board. See EPROM.
EGA		Enhanced Graphics Adapter. An IBM video display standard that provides medium-resolution text and graphics. Maximum resolution: 640 350 16.
EIDE		Extended Integrated Drive Electronics. An improved version of AT Attachment, with faster data rates and 32 bit transactions. EIDE was coined by Western Digital around 1994, and the standard is alsoreferred to as "Fast ATA-2".
EISA		Extended Industry Standard Architecture. Compatible with the earlier ISA architecture and has a 32-bit data path. See bus, ISA.
EISA configuration utility		The ROM-based setup program for EISA computers.
*EMS*		Expanded Memory Specification. A method for accessing memory beyond the 640K DOS limit. See expanded memory.
end user		A person who uses a computer as a tool to do something else. i.e. not a computer programmer or computer designer.
engine		When referring to software, a program that performs some kind of intricate data manipulation. i.e. a search engine
Enter		The key immediately right of the apostrophe key. Also called the Return key and the Carriage Return. A similar key is at the lower right corner of the keyboard.
EPP		Enhanced Parallel Port. Parallel port standard that supports data-transfer rates of up to 500 Kb per second compared to 150 Kb per second for the standard parallel interface.
EPROM		Erasable Programmable Read Only Memory. A type of ROM chip that can be programmed, then erased prior to reprogramming. Usually erased by exposing the circuitry in the chip to ultraviolet light. See PROM.
.EPS		The usual extension for an extended PostScript filename.
Esc key		Escape key. Located near the upper left corner of the keyboard. Its use depends on the software being run, but frequently used for backing out of what you were just doing.
escape character		ASCII 27. Commonly used as a prefix for printer commands.
Ethernet		A local area network architecture.
ESDI		Enhanced Small Device Interface. A high speed (10 - 20 Mb/sec) communication architecture for disk and tape drives.
even parity		In data transmission, setting a bit in each block of data so that every block has an even number of 1's.
.EXE		The DOS file extension for an executable program. To run an .exe program, type its filename (but not the .exe) and press Enter. Similar to .com.
execute		To run something on a computer, especially a command or program.
exit		To quit running a program.
expanded memory		RAM above 1MB accessed on an alternating basis (using bank switching) so that addresses appear to be below 1MB. Software must be written for compatibility with EMS in order to use expanded memory. Applications running under OS/2 cannot access expanded memory. They use extended memory.
expanded memory manager		A device driver that manages expanded memory for software not itself written to use expanded memory.
expansion bus		The pathway by which a CPU and other components of the system board communicate with cards in the computer's expansion slots. Also called the bus and the system bus.
expansion card		A printed circuit card that plugs into an expansion slot and adds functionality to the computer system.
expansion slot		A connector on the system board that can hold an expansion card such as a display adaptor, disk drive controller, I/O card, memory expansion.
extended memory		RAM above 1MB, with addresses above 1MB that some applications can address directly. 80286 processors can access this memory when running in protected mode, and 80386 and 80486 can access it when running in virtual real mode. However, DOS programs cannot generally use these modes. Extended memory can be used to emulate expanded memory. Applications running under OS/2 can access extended memory.
extended memory manager		A device driver that enables the use of extended memory for those programs written to take advantage of it. Microsoft's version of this driver is called HIMEM.SYS.
extension		The part of a file's DOS identifier that comes after the filename. Extensions appear in the second column when you execute a DIR command. Can be as long as three characters. Separated from the filename by a period. Extensions frequently indicate the type of file. For example, .exe indicates an executable program, ".pm5" indicates a file created by PageMaker version 5.
external		Outside the computer case. Printers are usually external. Modems and hard drives are commonly available internal or external. Compare remote.
extranet		An intranet that is made available to external customers or organizations to view data. Most are password protected for the security of the client.

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