Image
EAN-13	9780060892999
Product Name	A Canticle For Leibowitz
Category	Book / Magazine / Publication
Short Description	Paperback
Amazon.com	Buy on Amazon ~ 0060892994
SKU	9780060892999
Price New	7.61 US Dollars    (curriencies)
Price Used	1.99 US Dollars    (curriencies)
Width	0.88 inches    (convert)
Height	8 inches    (convert)
Length	5.32 inches    (convert)
Weight	9.28 ounces    (convert)
Author	Walter M. Miller Jr.
Page Count	334
Binding	Paperback
Published	05/09/2006
Features	Great product!
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Created	02-26-2012 6:38:13pm
Modified	10-08-2017 10:58:42pm
MD5	de0e7d8ab7c87d66f26b923f91d8d1db
SHA256	cf93478bb4fa336fe0986082b980969af9c7187d41883748d08c68e6f2f0eccd
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MSI Barcodes

MSI (Modified Plessey) barcode is a type of linear barcode symbology commonly used for encoding numeric data. Originally developed by the MSI Data Corporation, MSI barcodes are characterized by their unique pattern of alternating bars and spaces, which encode numeric digits and a modulo-10 checksum. MSI barcodes are widely employed in retail, inventory management, and tracking applications due to their simplicity and reliability. They are particularly suitable for environments where numeric data needs to be quickly and accurately scanned, such as point-of-sale systems and inventory control.

One of the key advantages of MSI barcodes is their ability to encode numeric data efficiently while providing built-in error detection capabilities. The modulo-10 checksum included in MSI barcodes allows barcode scanners to verify the accuracy of the scanned data, reducing the risk of errors in data entry and processing. This makes MSI barcodes highly reliable for applications requiring precise numeric identification, such as tracking inventory items and recording sales transactions. Overall, MSI barcodes offer a cost-effective and reliable solution for businesses seeking to streamline their data capture processes and improve operational efficiency.

This symbology was developed by the MSI Data Corporation and is based on the Plessey Code symbology. MSI is most often used in warehouses and inventory control.

This is a continuous non-self-checking symbology meaning it has no predetermined length and there is no validation built into the barcode itself. If you want to validate the data stored in the barcode, you would need to use a check digit. Mod 10 is the most common check digit used with MSI but you can also use mod 1010 or mod 1110. It is allowed but generally not a good idea to omit the check digit all together.

There is a start marker which is represented by three binary digits 110 (where 1 is black and 0 is white). There is also a stop marker which is represented by four binary digits 1001. The remaining markers represent the numeric digits 0-9 (no text or special characters) and each digit is represented by twelve binary digits. Below is a table that describes all of the possible markers. The start and stop markers are the main difference between MSI and Plessey. That and the fact that MSI only covers digits 0-9. You can read these stripes as a binary values where 110 is binary 1 and 100 is binary 0. The stop marker simply has an extra bit on the end.

 To create a graphical barcode using this process, you can simply string together a series of 1 and 0 graphic images once you have calculated what your barcode should look like using the table shown above. You can view the source code of this page if you want to see how we created the example shown below.

Code	[start]375[stop]
Bits:	110 100100110110 100110110110 100110100110 1001
Graphic:

This is just an example of one way to perform the graphic encoding. It is often easier to just draw the lines instead of tacking together individual images. If you would like to create free MSI barcodes, please visit our barcode generator page. You can save the images you make and use them as needed.