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EAN-139780763791308   EAN-13 barcode 9780763791308
Product NameNetwork Security, Firewalls, And Vpns (Jones & Bartlett Learning Information Systems & Assurance)
LanguageEnglish
CategoryBook / Magazine / Publication
Short DescriptionHeight:9.02 inches / Length:7.28 inches / Weight:1.76 pounds / Width:1.1 inches
Amazon.comA Buy on Amazon ~ 076379130X
SKU076379130X
Price New12.95 US Dollars    (curriencies)
Price Used4.95 US Dollars    (curriencies)
Width1 inches    (convert)
Height9.25 inches    (convert)
Length7.52 inches    (convert)
Weight28.8 ounces    (convert)
AuthorJ. Michael Stewart
Page Count482
BindingPaperback
Published09/10/2010
FeaturesUsed Book in Good Condition
Long DescriptionPART OF THE NEW JONES & BARTLETT LEARNING INFORMATION SYSTEMS SECURITY & ASSURANCE SERIES! Network Security, Firewalls, and VPNs provides a unique, in-depth look at the major business challenges and threats that are introduced when an organization’s network is connected to the public Internet. Written by an industry expert, this book provides a comprehensive explanation of network security basics, including how hackers access online networks and the use of Firewalls and VPNs to provide security countermeasures. Using examples and exercises, this book incorporates hands-on activities to prepare the reader to disarm threats and prepare for emerging technologies and future attacks.
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Created11-22-2012 12:09:38am
Modified07-10-2017 8:43:18pm
MD580183e2769dcdb647477aff7cc5322b5
SHA2561ab9d10ab455a7515811be53a650cb0b1ffb52fd0d4fd07bd5b0d3f3e5cb0561
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Article of interest

ISBN stands for International Standard Book Number. Originally this was a 10 digit number known as ISBN-10, but has been replaced with a 13 digit version known as ISBN-13 (aka EAN-13) to better fit in with the industry standard product numbering system.

The ISBN system offers a unique numbering system for books and publications of various types. ISBN offers 9 identification digits for each book or publication and one check digit. ISBN-13 expands the available number set by doubling the available numbers. You might think that the extra three digits would more than double the available numbers but ISBN is limited within the EAN-13 numbering system and will always start with 978 or 979 as the first three digits, leaving only 9 more digits for the actual identification digits and again the last digit is the check digit.

Any ISBN-10 number can be converted to ISBN-13. Any ISBN-13 number that starts with 978 can be converted back to ISBN-10. ISBN-13 numbers that start with 979 cannot be converted to ISBN-10.

The conversion process from ISBN-10 to ISBN-13 is a rather simple one. Start with the first 9 digits of the ISBN-10 number, place 978 in front and calculate the new check digit using the standard EAN check digit calculation.

If you want to calculate the check digit for ISBN-10, that is done using a MOD-11 calculation that is very different than the EAN check digit process.

ISBN-1-5905-9332-4

Look at the number above and below the barcode. You will see that except for the last digit in the ISBN number, all of the digits exist in the 13 digit version shown under the barcode right after the 978 and just before the new check digit of 5.

Now you can see how easy it is to convert between ISBN-10 and ISBN-13.

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