Symbol MC9090G User Manual page 228

Glossary - 4 MC909X Mobile Computer User Guide
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.
Continuous Code. A bar code or symbol in which all spaces within the symbol are parts of characters. There are no
intercharacter gaps in a continuous code. The absence of gaps allows for greater information density.
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
Data Communications Equipment (DCE). A device (such as a modem) which is designed to attach directly to a DTE (Data
Terminal Equipment) device.
DCE. See Data Communications Equipment.
DCP. See Device Configuration Package.
Dead Zone. An area within a scanner's field of view, in which specular reflection may prevent a successful decode.
Decode. To recognize a bar code symbology (e.g., UPC/EAN) and then analyze the content of the specific bar code
scanned.
Decode Algorithm. A decoding scheme that converts pulse widths into data representation of the letters or numbers
encoded within a bar code symbol.
Decryption. Decryption is the decoding and unscrambling of received encrypted data. Also see, Encryption and Key.
Depth of Field. The range between minimum and maximum distances at which a scanner can read a symbol with a certain
minimum element width.
Device Configuration Package. The Symbol Device Configuration Package provides flash partitions, Terminal
Configuration Manager (TCM) and the associated TCM scripts. With this package hex images that represent flash
partitions can be created and downloaded to the mobile computer.
Discrete Code. A bar code or symbol in which the spaces between characters (intercharacter gaps) are not part of the code.
Discrete 2 of 5. A binary bar code symbology representing each character by a group of five bars, two of which are wide.
The location of wide bars in the group determines which character is encoded; spaces are insignificant. Only numeric
characters (0 to 9) and START/STOP characters may be encoded.
DRAM. Dynamic random access memory.
DTE. See Data Terminal Equipment.