<?xml version="1.0" encoding="UTF-8"?><marc:collection xmlns:marc="http://www.loc.gov/MARC21/slim">
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    <marc:leader>00000nam  2200000zi 4500</marc:leader>
    <marc:controlfield tag="001">9.883878</marc:controlfield>
    <marc:controlfield tag="003">CaOODSP</marc:controlfield>
    <marc:controlfield tag="005">20221107170714</marc:controlfield>
    <marc:controlfield tag="006">m     o  d f      </marc:controlfield>
    <marc:controlfield tag="007">cr cn|||||||||</marc:controlfield>
    <marc:controlfield tag="008">200123s1980    onca    ob   f000 0 eng d</marc:controlfield>
    <marc:datafield tag="040" ind1=" " ind2=" ">
      <marc:subfield code="a">CaOODSP</marc:subfield>
      <marc:subfield code="b">eng</marc:subfield>
      <marc:subfield code="e">rda</marc:subfield>
      <marc:subfield code="c">CaOODSP</marc:subfield>
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    <marc:datafield tag="043" ind1=" " ind2=" ">
      <marc:subfield code="a">n-cn---</marc:subfield>
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    <marc:datafield tag="086" ind1="1" ind2=" ">
      <marc:subfield code="a">Co24-264/1980E-PDF</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="100" ind1="1" ind2=" ">
      <marc:subfield code="a">Field, J. A. </marc:subfield>
      <marc:subfield code="q">(James A.)</marc:subfield>
      <marc:subfield code="e">author.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="245" ind1="1" ind2="0">
      <marc:subfield code="a">Technical problems of Canadian data network interworking. </marc:subfield>
      <marc:subfield code="n">I, </marc:subfield>
      <marc:subfield code="p">Identification of data network interconnections / </marc:subfield>
      <marc:subfield code="c">by J.A. Field, H.C. Ratz, Eric Manning, V. DiCiccio.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="250" ind1=" " ind2=" ">
      <marc:subfield code="a">Revised Feb. 14, 1980.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="264" ind1=" " ind2="1">
      <marc:subfield code="a">[Ottawa] : </marc:subfield>
      <marc:subfield code="b">[Department of Communications], </marc:subfield>
      <marc:subfield code="c">1980.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="300" ind1=" " ind2=" ">
      <marc:subfield code="a">1 online resource (iii, 58 pages) : </marc:subfield>
      <marc:subfield code="b">illustrations</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="336" ind1=" " ind2=" ">
      <marc:subfield code="a">text</marc:subfield>
      <marc:subfield code="b">txt</marc:subfield>
      <marc:subfield code="2">rdacontent</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="337" ind1=" " ind2=" ">
      <marc:subfield code="a">computer</marc:subfield>
      <marc:subfield code="b">c</marc:subfield>
      <marc:subfield code="2">rdamedia</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="338" ind1=" " ind2=" ">
      <marc:subfield code="a">online resource</marc:subfield>
      <marc:subfield code="b">cr</marc:subfield>
      <marc:subfield code="2">rdacarrier</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="500" ind1=" " ind2=" ">
      <marc:subfield code="a">"Project no. 709-04."</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="500" ind1=" " ind2=" ">
      <marc:subfield code="a">"Sponsored by Department of Communications Canada under Department of Supply and Services contract no. OSU77-00319."</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="500" ind1=" " ind2=" ">
      <marc:subfield code="a">Digitized edition from print [produced by Innovation, Science and Economic Development Canada].</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="504" ind1=" " ind2=" ">
      <marc:subfield code="a">Includes bibliographical references (pages 57-58).</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="520" ind1=" " ind2=" ">
      <marc:subfield code="a">"This report is the first of four reporting on a study of the technical problems of Canadian data network interworking. This study was undertaken for the Department of Communications under Department of Supply and Services contract OSU77-00319. The overall objective was to produce an appraisal of the technical problems and cost implications of possible future interconnections and interworking between the following Canadian data networks: Infoswitch, Datapac, Telex, TWX, dial telephone, and Infodat and Dataroute leased lines. The major emphasis was to be on the Datapac-Infoswitch and Infoswitch-dialed telephone interconnections. … The overall study is divided into four major areas, each with a separate report. This report considers the first item: the identification of potentially desirable data network interconnections, with comments on their technical and economic feasibility"--Introduction, page 1.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="530" ind1=" " ind2=" ">
      <marc:subfield code="a">Issued also in print format.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="650" ind1=" " ind2="0">
      <marc:subfield code="a">Data transmission systems</marc:subfield>
      <marc:subfield code="z">Canada.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="650" ind1=" " ind2="0">
      <marc:subfield code="a">Packet switching (Data transmission)</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="650" ind1=" " ind2="6">
      <marc:subfield code="a">Données</marc:subfield>
      <marc:subfield code="x">Transmission</marc:subfield>
      <marc:subfield code="z">Canada.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="650" ind1=" " ind2="6">
      <marc:subfield code="a">Commutation de paquets.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="710" ind1="1" ind2=" ">
      <marc:subfield code="a">Canada. </marc:subfield>
      <marc:subfield code="b">Department of Communications.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="710" ind1="2" ind2=" ">
      <marc:subfield code="a">University of Waterloo. </marc:subfield>
      <marc:subfield code="b">Research Institute.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="856" ind1="4" ind2="0">
      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">4.35 MB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2020/isde-ised/Co24/Co24-264-1980-eng.pdf</marc:subfield>
    </marc:datafield>
  </marc:record>
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