Symbol Technologies MC50 - Manual (Page 84)

MC50 User Guide GL-4
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 (- . / + % $and space).
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.
Code Length Number of data characters in a bar code between the start and stop
characters, not including those characters.
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 mobile computer battery and for
communicating with a host computer, and provides a storage place
for the mobile computer when not in use.
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 the Product
Reference Guide (PRG), 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.