Code-bars

A code-bars , or bar code , is the representation of a numerical data or Alphanumérique in the form of a symbol made up of bars and spaces of which the thickness varies according to the Symbologie used and of the data thus coded.

When these bars are replaced by small squares or points, one speaks about code in two dimensions

The code-bars are intended for a reading automated by a electronic Capteur, the Lecteur of code-bars.

Symbologies

Some unidimensional types of code-bars (1D):

• the code-bars EAN: EAN 8, EAN 13, Universal Code of Products (CUP);

• the Codabar Monarch
• the Code 11
• the Code 39
• the Code 93
• the Code 128
• the 2 among 5 interlaced

Some two-dimensional types of code-bars

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