Table of Contents
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Aperture
ASCII
Autodiscrimination
Bar
Bar Code Density
Bar Height
Bar Width
Baud Rate
Bit
Glossary
The opening in an optical system defined by a lens or baffle that establishes the
field of view.
American Standard Code for Information Interchange. A 7 bit-plus-parity
code representing 128 letters, numerals, punctuation marks, and control
characters. It is a standard data transmission code in the U.S.
The ability of an interface controller to determine the code type of a scanned
bar code. After this determination is made, the information content can be
decoded.
The dark element in a printed bar code symbol.
The number of characters represented per unit of measurement
(e.g., characters per inch).
The dimension of a bar measured perpendicular to the bar width.
Thickness of a bar measured from the edge closest to the symbol start character
to the trailing edge of the same bar.
A measure of the data flow or number of signaling events occurring per second.
When one bit is the standard "event," this is a measure of bits per second (bps).
For example, a baud rate of 50 means transmission of 50 bits of data per
second.
Binary digit. One bit is the basic unit of binary information. Generally, eight
consecutive bits compose one byte of data. The pattern of 0 and 1 values
within the byte determines its meaning.
Glossary-1
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