Image
EAN-130765023020649   EAN-13 barcode 0765023020649
UPC-A765023020649   UPC-A barcode 765023020649
Product NameLearning Resources Classroom Magnet Lab Kit
CategoryToy / Game / Puzzle
Short DescriptionHeight:5.7 inches / Length:3.3 inches / Weight:2.3 pounds / Width:9 inches
Amazon.comA Buy on Amazon ~ B000ENW5ZG
SKULRS1277
Price New28.99 US Dollars    (curriencies)
Long DescriptionLER2064 Everyone gets hands-on exploration with this complete 224-piece classroom set for 25 students. Includes 100 Magnetic chips, 100 Magnetic paper clips, 10 Marbles, 7 Magnetic wands, 2 Metal ring magnets, 2 Mini metal horseshoe magnets, 1-5" Plastic horseshoe magnet, 2 Metal bar magnets Teacher's guide and durable storage box
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Created11-28-2012 12:56:59am
Modified10-04-2017 1:02:27pm
MD54a1dd381538331652a8ecea06ae8160b
SHA2560bcc8c19cd8e273c6eca454bbd709ef1ab82285a6bf6c1990c4a8709642ea444
Search Googleby EAN or by Title
Query Time0.0017278

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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