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EAN-139780754608929   EAN-13 barcode 9780754608929
Product NameProfessionalization And Participation In Child And Youth Care: Challenging Understandings In Theory And Practice
LanguageEnglish
CategoryBook / Magazine / Publication
Short DescriptionHardcover
Amazon.comA Buy on Amazon ~ 0754608921
Price Used29.97 US Dollars    (curriencies)
Page Count270
BindingPaperback
Published10/01/2002
Long DescriptionThe field of child and youth care is under increasing pressure to optimize its mission: to deliver high quality support and to help children, parents and families in need of care. This book brings to light a new vision on developments and research in the field and informs the reader on recent findings.
Created11-10-2012 5:09:22am
Modified09-09-2018 9:49:42am
MD5a1760357c5d40a7100dfd477fdd135ff
SHA2566105c12419d82cd9b6f607aa76ee391f9b21ec9e119806ac5ae14ea77998db30
Search Googleby EAN or by Title
Query Time0.0061691

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Code 128 Barcodes

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.