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Glossary
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).
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.
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
Cold Boot. A cold boot restarts the mobile computer 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
Decode. To recognize a bar code symbology (e.g., UPC/EAN) and then analyze the content of the
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G l o s s a r y
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Troubleshooting
