Image
EAN-139780768234640   EAN-13 barcode 9780768234640
Product NameWhat's for Lunch? Cheap Chart (Cheap Charts)
LanguageEnglish
CategoryBook / Magazine / Publication
Short DescriptionOther
Amazon.comA Buy on Amazon ~ 0768234646
Width0.03 inches    (convert)
Height22 inches    (convert)
Length17 inches    (convert)
Weight1.6 ounces    (convert)
AuthorSchool Specialty Publishing
Page Count1
BindingPoster
Published02/15/2008
Long DescriptionThis cheap chart targets primary grades and provides teachers with the tools they need to decorate and organize their classrooms. With age-appropriate photographs, as well as an area for teachers to personalize for their class, students will always know What's for Lunch .
Created11-08-2012 8:05:53pm
Modified05-01-2020 1:15:05am
MD5919210e6c11701d7766dac18480e37c4
SHA25653db8bce1951cbfad084e54193cfe9a3a24364998bcd27a2f313f39f3e28cfd2
Search Googleby EAN or by Title
Query Time0.0060229

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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