Image
EAN-139780812079197   EAN-13 barcode 9780812079197
Product NameMastering Spanish, Level 2: Book and 12 Cassettes (Mastering Series: Level 2)
CategoryBook / Magazine / Publication
Amazon.comA Buy on Amazon ~ 0812079191
SKUQX-056-19-7698807
Price New58.88 US Dollars    (curriencies)
Price Used16.16 US Dollars    (curriencies)
Width2.5 inches    (convert)
Height10.5 inches    (convert)
Length9.88 inches    (convert)
Weight66.56 ounces    (convert)
AuthorForeign Service Language Institute
BindingAudio Cassette
Published09/18/1992
FeaturesUsed Book in Good Condition
Long DescriptionThe most advanced and comprehensive self-teaching course in Spanish available anywhere, this Level Two program is recommended for those who have already progressed through Mastering Spanish, Hear It, Speak It, Read It, Write It--Level One. Both programs were developed by the Foreign Service Institute, which trains U.S. diplomats in foreign languages.
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Created11-19-2012 8:01:28pm
Modified09-10-2017 3:11:26am
MD5e3783bed2c6a4a9c51504cd6772c0768
SHA256183a38dcacdbf9a0c327948f3d4e2b21fae0dd8e4250afa6a39c1cf81577fb67
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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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