Motorola MC50 User Manual page 80

Glossary - 2 MC50 with Windows Mobile 5.0 User Guide
Application Programming Interface. See API.
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.
Autodiscrimination. The ability of an interface controller to determine the code type of a scanned bar code.
After this determination is made, the information content is decoded.
B
Bar. The dark element in a printed bar code symbol.
Bar Code. A pattern of variable-width bars and spaces which represents numeric or alphanumeric data in
machine-readable form. The general format of a bar code symbol consists of a leading margin, start
character, data or message character, check character (if any), stop character, and trailing margin. Within
this framework, each recognizable symbology uses its own unique format. See Symbology.
Bar Code Density. The number of characters represented per unit of measurement (e.g., characters per inch).
Bar Height. The dimension of a bar measured perpendicular to the bar width.
Bar Width. Thickness of a bar measured from the edge closest to the symbol start character to the trailing edge
of the same bar.
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 byte determines its meaning.
Bits per Second (bps). Bits transmitted or received.
Boot or boot-up. The process a computer goes through when it starts. During boot-up, the computer can run
self-diagnostic tests and configure hardware and software.
bps. See Bits Per Second.
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.
C
CDRH. Center for Devices and Radiological Health. A federal agency responsible for regulating laser product
safety. This agency specifies various laser operation classes based on power output during operation.
CDRH Class 1. This is the lowest power CDRH laser classification. This class is considered intrinsically safe,
even if all laser output were directed into the eye's pupil. There are no special operating procedures for this
class.