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Glossary, continued
hands–free scanning
A scanning method that uses a special stand to hold the scanner while
scanning.
host terminal
The device used to receive and process information collected through the
scanner. Point-of-sale terminals, cash registers and personal computers are
examples of host terminals.
Interleaved 2 of 5
A high density, self checking, continuous numeric symbology, used in the
distribution industry.
keyboard wedge mode
An operating method for the scanner that lets it be connected to a PC by
attaching it to the keyboard. This mode is useful for PCs that do not have an extra
serial communication port.
laser redundancy
A feature that checks each scan by creating a duplicate scan and comparing
the information.
laser scanner
See scanner.
modulo 43
A character within a string of data that performs a mathematical check to ensure
the accuracy of the data.
number system digit
The character in some UPC symbols that precedes the bar coded information.
OCIA
Optical Coupled Interface Adapter. A type of interface that allows the scanner
to transmit bar code data to cash registers.
OCR
Optical Character Recognition. A process in which a machine processes
scanned information in an optical character format.
operating parameter
An adjustable operating feature. Examples of operating parameters are bar
code symbology and baud rate.
parameter
See operating parameter.
portable reader
A hand-held device that lets the user move around with the scanner to scan
items. The scanned information is stored in the reader and transferred later to
a terminal.
1551C Decoding Laser Scanner User's Guide
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