OUTLINE FOR PRODUCT REFERANCE MANUAL
Z-3070 CCD BARCODE SCANNER
Terms and Definitions
TERMS DEFINITIONS
ASCII
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.
Bar
The dark element in a printed barcode symbol.
Baud Rate
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 9600 means
transmission of 9600 bits of data per second.
Bit
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 determines its meaning.
Byte
On an addressable boundary, eight adjacent binary
digits (0 and 1) combined in a pattern to represent a
specific character or numeric value. Bits are
numbered from the right, 0 through 7, with bit 0 the low
order bit. One byte in memory is used to store one
ASCII character.
CDRH
Center for Devices and Radiological Health. Federal
agency responses for regulating laser product safety.
This agency specifies various laser operation classes
based on power output during operation.
Character
A pattern of bars and spaces which either directly
represents data or indicates a control function, such as
a number, letter, punctuation mark, or communications
control contained in a message.
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