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EAN-139781165151707   EAN-13 barcode 9781165151707
Product NameTreaties, Etc. Concluded Between Great Britain And Persia: And Between Persia And Other Foreign Powe
LanguageEnglish
CategoryBook / Magazine / Publication
Short DescriptionPaperback
Amazon.comA Buy on Amazon ~ 1165151707
SKUIQ-9781165151707
Price New18.93 US Dollars    (curriencies)
Long DescriptionThis book is a facsimile reprint and may contain imperfections such as marks, notations, marginalia and flawed pages.
Created11-17-2012 7:05:47pm
Modified12-23-2013 10:26:40pm
MD5fe898110195389021ea32cab11708609
SHA25695756a62291ef94f1d5ced94d7af679e1e32df9a5643d2df3c9ffdb7eade3dd9
Search Googleby EAN or by Title
Query Time0.0017571

Code 128 is a high-density 1D barcode symbology. This barcode set makes use of the entire 128 ASCII characters which include letter, number and symbols.

Code 128 Barcode

As with all barcodes, there are indicators to identify where the barcode starts and stops. These are marked in yellow below. Code 128 also has a check character which has been marked in green. The remainder of the barcode is the data being encoded. The text below the barcode is optional and is for human consumption in the event the barcode can't be scanned or if people also need to know what the code means.

Code 128 Barcode

Each character in the barcode symbol is composed of three bars and three spaces. Each bar or space must range from 1-4 units and the sum of all the width of all bars must work out to an even number. The stop marker is special because it adds an extra bar of 2 units at the very end (4 bars and 3 spaces). There are three different start markers to to identify which code set is being used. To represent all 128 characters, the code sets can be within a single barcode as needed by using control characters 98-101 (depending on the code set).

The check character is calculated by summing the value of each character and multiplying it by its position. The start character is also part of the sum but is added without weight (multiply by 1 just like the first encoded data character) then when you have the sum take the modulo 103 remainder. This gets a little more complex when mixing modes within a single barcode.

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