Decoder
As part of a barcode reading system, the electronic package which receives the
signals from the scanner, performs the algorithm to interpret the signals into
meaningful data and provides the interface to other devices. The decoder is normally
integrated into the scanner.
EAN
European Article Number System. The international standard barcode for retail food
packages.
EEPROM
Electrically Erasable Programmable Read-Only Memory. An on-board non-volatile
memory chip.
Full Duplex
Simultaneous, two-way, independent transmission in both directions.
Half Duplex
Transmission in either direction, but not simultaneously.
Host
A computer that serves other terminals in a network, providing services such as
network control, database access, special programs, supervisory programs, or
programming languages.
Interface
A shared boundary defined by common physical interconnection characteristics,
signal characteristics and meanings of interchanged signals.
LED (Light Emitting Diode)
A low power electronic device that can serve as a visible or near infrared light source
when voltage is applied continuously or in pulses. It is commonly used as an
indicator light and uses less power than an incandescent light bulb but more than a
Liquid Crystal Display (LCD). LEDs have extremely long lifetimes when properly
operated.
Multidrop Line
A single communications circuit that interconnects many stations, each of which
contains terminal devices. See RS485.
Parameter
A value that you specify to a program. Typically parameters are set to configure a
device to have particular operating characteristics.
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