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      <marc:subfield code="a">Hayes, Jeremiah F., </marc:subfield>
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      <marc:subfield code="a">Local area networks and open systems interconnection : </marc:subfield>
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      <marc:subfield code="a">"Local Area Networks (LAN) are a class of data networks having limited geographical areas, usually within a kilometer. Networks confined to a single office building, shopping center or university campus are prime examples of LAN's. The emergence of LAN's is part of the general growth of computer and digital technology, however the introduction of Office Automation and Distributed Processing Systems has furnished additional impetus. In both of these applications LAN techniques play a significant role"--Introduction.</marc:subfield>
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