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Glossary of Terms

The Intermec glossary provides definitions of technical terms used to describe systems, devices, solutions and applications within the Automated Data Capture Industry.

EAN
European article numbering; now also called IAN (international article numbering). International standard bar code for retail food packages corresponding to the universal product code (UPC) in the United States. UPC is a subset of EAN, and a reader equipped to read EAN can also read UPC. A reader equipped to read UPC may not decode EAN. The EAN and UPC symbols were developed by IBM and introduced into the market in 1971. The U.S. adopted UPC in 1973; EAN was adopted in 1976.
EBCDIC
Extended binary coded decimal interchange code. Standard eight bit code developed by IBM. See also ASCII.
echoplex
Communication environment in which full duplex terminals work. Any data sent to the host is echoed back to the device that sent the data.
Edge Trigger mode
The laser only turns on or off when you pull the trigger-it completely ignores the trigger release. Thus, if you pull the trigger, it will go on and stay on when you release the trigger. Pulling the trigger a second time will cause the laser to go off. If the laser is on, the timeout and number of decodes per trigger event operate normally and will turn the laser off. Edge Trigger mode is most often used in remote triggering applications. See also Level Trigger mode.
edge triggering
A scanner trigger configuration that makes the laser turn on after you pull the trigger and stay on until you pull it a second time. Simply releasing the trigger does not turn the laser off. If the laser is left on, the scanner timeout turns the laser off. Contrast with level triggering.
EEPROM
Electrically erasable programmable read only memory.
element
A single binary position in a character; dimensionally the narrowest width in a character bar or space. A generic term used to refer to either a bar or a space.
EMM
Expanded Memory Manager. Software that makes expanded memory available to EMS-compatible DOS programs.
EmComm
Emulator communications. EmComms allow transaction data from a data collection device to be mapped to host applications running in a 3270 or 5250 terminal emulator.
emulation
An operating mode in which the printer has the operating characteristics of another printer.
encoded area
The total lineal dimension occupied by all characters of a code pattern, including the start/stop characters and data.
END
End of IRL program/compile character. Sent by the host to tell the reader that the program has been downloaded and to wait for the RUN command.
end device
See data collection device.
environment variable
A specification in a program that defines an operating parameter, such as the command path.
EOF
End of file character. Attached to the last record transmitted in a block of records and after the EOR, if the EOF character field is enabled.
EOM
End of message character. Sent at the end of reader messages and at the end of host messages. The transmitted and received EOM characters can be defined separately.
EOP
End of program block/continue character. Sent by the host after a block of IRL program statements to tell the reader that another block of IRL statements is coming.
EOR
End of record character. Attached to the end of every record transmitted by the polled device if the EOR character field is enabled.
EPROM
Erasable programmable read only memory. A special type of ROM that can be erased by exposing the chip to ultraviolet light. It can be reprogrammed after it is erased.
ERP
Enterprise resource planning. The current evolution of manufacturing resources planning (MRP and MRPII) systems. ERP provides the foundation for integrating enterprise-wide information systems. These systems will link all aspects of a company's operations including human resources, financial planning, manufacturing, and distribution, as well as connect the organization to its customers and suppliers.
error message
A message from a device or program advising the user of an error that requires intervention to solve. For example, if you receive the error message "Unable to establish connection to host. Session ended." when you turn on the terminal, you may need to configure the terminal.
ESD
Electrostatic discharge. Transient, rapid transfer of charge between bodies at different electrostatic potentials, either: caused by direct contact, by arc-over of near proximity, or induced by an electrostatic field.
ESD mat
A flexible work surface composed of vinyl or rubber with an added component to allow static to drain from its surface to the ground through a connected grounding cord.
Ethernet
A type of LAN that allows the transmission of computer data, audio data, and video data. Ethernet uses the access method known as CSMA/CD (carrier sense multiple access with collision detection). Refer to the IEEE 802.3 standard for the specifications.
ETSI
European Telecommunications Standards Institute. European agency responsible for setting and enforcing regulations associated with telecommunications.
execute
To perform an instruction or a computer program.
expanded memory
Memory above 1MB that requires an expanded memory board and expanded memory manager.
extended memory
System memory above 1MB. The reader is initially configured with 64K of extended memory available, which is allocated for use by Intermec applications (IC.EXE and IRL). The reader provides extended memory for control and access to RAM above 1MB. The extended memory conforms to XMS specification 2.0. Extended memory is initialized and managed by the HIMEM.SYS driver.
extended memory manager
Software that makes extended memory available to DOS programs. For example, you must run an extended memory manager such as HIMEM.SYS on the reader to create and use a physical RAM drive.
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