Motorola WT4090 User Manual page 80

Glossary - 2 WT4090 Wearable Terminal User Guide
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.
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.
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.
CDRH Class 2. No additional software mechanisms are needed to conform to this limit. Laser operation in this class poses
no danger for unintentional direct human exposure.
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.
Codabar. A discrete self-checking code with a character set consisting of digits 0 to 9 and six additional characters: (-$:/,+).
Code 128. A high density symbology which allows the controller to encode all 128 ASCII characters without adding extra
symbol elements.
Code 3 of 9 (Code 39). A versatile and widely used alphanumeric bar code symbology with a set of 43 character types,
including all uppercase letters, numerals from 0 to 9 and 7 special characters (space, minus (-), plus (+), period (.), dollar
sign ($), slash (/), and percent (%)). The code name is derived from the fact that 3 of 9 elements representing a character
are wide, while the remaining 6 are narrow.
Code 93. An industrial symbology compatible with Code 39 but offering a full character ASCII set and a higher coding
density than Code 39.
Cold Boot. A cold boot restarts the wearable terminal and erases all user stored records and entries.
COM port. Communication port; ports are identified by number, e.g., COM1, COM2.
Cradle. A cradle is used for charging the terminal battery and for communicating with a host computer, and provides a
storage place for the terminal when not in use.
D
DCP. See Device Configuration Package.
Decode. To recognize a bar code symbology (e.g., UPC/EAN) and then analyze the content of the specific bar code
scanned.