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EAN-139781103325290   EAN-13 barcode 9781103325290
Product NameComics And Sequential Art: Principles And Practices From The Legendary Cartoonist (Will Eisner Instructional Books)
LanguageEnglish
CategoryBook / Magazine / Publication
Amazon.comA Buy on Amazon ~ 0393331261
SKU1398739
Price New13.04 US Dollars    (curriencies)
Price Used8.80 US Dollars    (curriencies)
Width0.6 inches    (convert)
Height10 inches    (convert)
Length8 inches    (convert)
Weight16.64 ounces    (convert)
AuthorWill Eisner
Page Count192
BindingPaperback
Published08/17/2008
FeaturesW W Norton Company
Long DescriptionThis is a pre-1923 historical reproduction that was curated for quality. Quality assurance was conducted on each of these books in an attempt to remove books with imperfections introduced by the digitization process. Though we have made best efforts - the books may have occasional errors that do not impede the reading experience. We believe this work is culturally important and have elected to bring the book back into print as part of our continuing commitment to the preservation of printed works worldwide.
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Modified10-08-2017 12:46:58am
MD5e31073ac0b77d489666f4b0689ac1807
SHA25699fa173fbdb5542d4450d038dfc697bef0484e8cbde1d970ebc8a6f23410afc7
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Article of interest

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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