Image
EAN-139780747586098   EAN-13 barcode 9780747586098
Product NameTeacher's Dead
CategoryBook / Magazine / Publication
Short DescriptionPaperback
Amazon.comA Buy on Amazon ~ 0747586098
SKUMON0000224312
Price New3.91 US Dollars    (curriencies)
Price Used0.01 US Dollars    (curriencies)
Width0.63 inches    (convert)
Height7.8 inches    (convert)
Length5.08 inches    (convert)
Weight5.6 ounces    (convert)
AuthorBenjamin Zephaniah
Page Count224
BindingPaperback
Published09/03/2007
FeaturesUsed Book in Good Condition
Long DescriptionA teacher is dead, murdered by two of his students in front of the school. He was a good man. People liked him. So how could this happen? Why? It just doesn't make sense to Jackson, and he is determined to investigate the case until he understands. Benjamin Zephaniah has, once again, chosen a topical and hard-hitting subject - and he deals with it in his own uniquely empathetic and edgy way.
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Created11-16-2012 8:12:43am
Modified07-02-2016 12:40:05am
MD54792aa0c78dba065a271b6b814dfcace
SHA25640fbbf77f33b0f18b8d3897bdd1d9a96195eb527624d60866c972d87b52769d3
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Query Time0.0081720

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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