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Shortcuts to Common Abbreviations and Acronyms:
edge connector
A form of connector consisting of a row of etched contacts along the edge of a printed circuit board that is inserted into an expansion slot in the computer.
Electrically Erasable Programmable Read-Only Memory (EEPROM)
A memory chip that maintains its contents without electrical power, and whose contents can be erased and reprogrammed either within the computer or from an external source. EEPROMs are used where the application requires stable storage without power, but where the chip may have to be reprogrammed.
Electromagnetic Interferece (EMI)
Any electromagnetic radiation released by an electronic device that disrupts the operation or performance of any other device. embedded controller The general class of microcontrollers used to support OEM-specific implementations, mainly in mobile environments. The embedded controller performs complex low-level functions through a simple interface to the host microprocessor(s). embedded controller interface ACPI defines a standard hardware and software communications interface between an operating system driver and an embedded controller--for example, Smart Battery and AML code. This allows any operating system to provide a standard driver that can directly communicate with an embedded controller in the system, thus allowing other drivers to communicate with and use the resources of system embedded controllers.
A device built to work exactly like another device, either hardware, software, or a combination of both.
Encapsulated PostScript (EPS)
The file format of the PostScript page description language. The EPS standard is device independent, so that images can easily be transferred between different applications, and they can be sized and output to different printers without any loss of image quality or distortion.
The process of encoding information in an attempt to make it secure from unauthorized access. The reverse of this process is known as decryption.
end user
Refers to the person who uses the application program to produce their own results.
Enhanced Expanded Memory Specification (EEMS)
A revised version of the original Lotus-Intel-Microsoft Expanded Memory Specification (LIM EMS), that lets DOS applications use more than 640KB of memory space.
Enhanced Graphics Adapter (EGA)
A video adapter standard that provides medium-resolution text and graphics, introduced by IBM in 1984. EGA can display 16 colors at the same time from a choice of 64, with a horizontal resolution of 640 pixels and a vertical resolution of 350 pixels.
Enhanced Small Device Interface (ESDI)
A popular hard disk, floppy disk, and tape drive interface standard, capable of a data transfer rate of 10 to 20 megabits per second. ESDI is most often used with large hard disks. enhanced television Combines standard television with HTML information related to programs.
entry-level system
A computer system that meets the basic requirements for a specific task. As computers become both cheaper and more capable, the definition of an entry-level system changes. Also, application developers continue to create new and more complex programs, which in turn demand more capability from the hardware. enumeration The process by which logical devices and buses, and their available resources, are identified by Plug and Play during system setup. enumerator A Plug and Play device driver that detects devices below its own device node, creates unique device IDs, and reports to Configuration Manager during startup. For example, a SCSI adapter provides a SCSI enumerator that detects devices on the SCSI bus.
Erasable programmable read-only memory (EPROM)
A memory chip that maintains its contents without electrical power, and whose contents can be erased and reprogrammed by removing a protective cover and exposing the chip to ultraviolet light.
error detection and correction
A mechanism used during a file transfer to determine whether transmission errors have occurred, and to correct those errors, if possible. Some programs or transmission protocols request a retransmission of the affected block of data if such an error is detected. More complex protocols attempt to both detect and correct transmission errors.
A LANcabling technology that uses CSMA/CD delivery. Ethernet runs over many different media, ranging from thick cable (10Base5) to twisted-pair wire (10BaseT). Ethernet has been standardized by the International Electrical and Electronics Engineers (IEEE) organization. The three most common Ethernet cabling standards are:
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