<?xml version="1.0" encoding="UTF-8"?><marc:collection xmlns:marc="http://www.loc.gov/MARC21/slim">
  <marc:record>
    <marc:leader>00000nam  2200000zi 4500</marc:leader>
    <marc:controlfield tag="001">9.879259</marc:controlfield>
    <marc:controlfield tag="003">CaOODSP</marc:controlfield>
    <marc:controlfield tag="005">20221107165450</marc:controlfield>
    <marc:controlfield tag="006">m     o  d f      </marc:controlfield>
    <marc:controlfield tag="007">cr |||||||||||</marc:controlfield>
    <marc:controlfield tag="008">190913e197206##oncabd  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>
    </marc:datafield>
    <marc:datafield tag="086" ind1="1" ind2=" ">
      <marc:subfield code="a">Co22-315/1972E-PDF</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="100" ind1="1" ind2=" ">
      <marc:subfield code="a">DeMercado, John, </marc:subfield>
      <marc:subfield code="e">author.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="245" ind1="1" ind2="0">
      <marc:subfield code="a">[Time shared systems] / </marc:subfield>
      <marc:subfield code="c">by John deMercado.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="264" ind1=" " ind2="1">
      <marc:subfield code="a">[Ottawa] : </marc:subfield>
      <marc:subfield code="b">Terrestrial Planning Branch, Department of Communications, </marc:subfield>
      <marc:subfield code="c">June 1972.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="300" ind1=" " ind2=" ">
      <marc:subfield code="a">1 online resource (4 volumes) : </marc:subfield>
      <marc:subfield code="b">illustrations, maps, graphs</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">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.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="505" ind1="0" ind2=" ">
      <marc:subfield code="a">v. 1. Introduction to time shared systems : computer considerations, communications considerations -- v. 2. Time shared systems hardware : memory hierarchy management -- v. 3. Time shared systems : communications processor theory, communications processor hardware -- v. 4. Time shared system terminal hardware : terminal hardware requirements, terminal user requirements.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="520" ind1=" " ind2=" ">
      <marc:subfield code="a">"The purpose of these notes is to promote dialogue within the Terrestrial Planning Branch and serve as a basis for our computer-communication systems implementation program"--Acknowledgements.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="650" ind1=" " ind2="0">
      <marc:subfield code="a">Time-sharing computer systems.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="650" ind1=" " ind2="6">
      <marc:subfield code="a">Temps partagé (Informatique)</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:subfield code="b">Terrestrial Planning Branch.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="740" ind1="0" ind2="2">
      <marc:subfield code="a">Introduction to time shared systems : computer considerations, communications considerations.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="740" ind1="0" ind2="2">
      <marc:subfield code="a">Time shared systems hardware : memory hierarchy management.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="740" ind1="0" ind2="2">
      <marc:subfield code="a">Time shared systems : communications processor theory, communications processor hardware.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="740" ind1="0" ind2="2">
      <marc:subfield code="a">Time shared system terminal hardware : terminal hardware requirements, terminal user requirements.</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="856" ind1="4" ind2="0">
      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">8.38 MB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2020/isde-ised/Co22/Co22-315-1972-1-eng.pdf</marc:subfield>
      <marc:subfield code="z">v. 1</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="856" ind1="4" ind2="0">
      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">6.49 MB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2020/isde-ised/Co22/Co22-315-1972-2-eng.pdf</marc:subfield>
      <marc:subfield code="z">v. 2</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="856" ind1="4" ind2="0">
      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">7.32 MB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2020/isde-ised/Co22/Co22-315-1972-3-eng.pdf</marc:subfield>
      <marc:subfield code="z">v. 3</marc:subfield>
    </marc:datafield>
    <marc:datafield tag="856" ind1="4" ind2="0">
      <marc:subfield code="q">PDF</marc:subfield>
      <marc:subfield code="s">4.90 MB</marc:subfield>
      <marc:subfield code="u">https://publications.gc.ca/collections/collection_2020/isde-ised/Co22/Co22-315-1972-4-eng.pdf</marc:subfield>
      <marc:subfield code="z">v. 4</marc:subfield>
    </marc:datafield>
  </marc:record>
</marc:collection>
