188 lines
9.6 KiB
HTML
188 lines
9.6 KiB
HTML
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<title>Show Me How It Works! Networking</title><!----------HEADING HERE---------->
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<meta name="DC.Title" content="Show Me How It Works! Networking" />
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<meta name="DC.Publisher" content="U.S. National Library of Medicine" />
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<meta name="DC.Date.Issued" content="2001-10-23" />
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<meta name="NLMDC.Date.Archived" content="2012-01-04" />
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<body background="../../../images/bg-pop-orange.gif" link="#cc0000" alink="#ff9900" vlink="#000000" text="000000" marginwidth="0" marginheight="0" leftmargin="0" topmargin="0">
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<td valign="top" width="*"><div id="archivetext">Archives</div></td>
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<td colspan="3"><span id="arccontainerheader" class="breadlinks"><a href="/index.html">Home</a> > <strong>NLM Archives</strong> > </span> <span id="disclaimerheader"><strong>Document content is not current. Links may be broken.</strong></span><span class="spacer"></span></td>
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<img src="../../../images/x.gif" alt="" width="1" height="18" border="0"><br>
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<table cellpadding="0" cellspacing="0" width="347" border="0">
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<td><img src="../../../images/x.gif" alt="" width="27" height="1"></td>
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<td><img src="../../../images/x.gif" alt="" width="320" height="1"><br>
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<font class="pophead">Show Me How It Works!</font><br><br><!-----SECTION HEADING HERE---->
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<!------------BEGIN VIDEO------------>
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<EMBED SRC="video/video4.mov" WIDTH=320 HEIGHT=255 AUTOSTART=false CONTROLLER=true PLUGINSPAGE="http://www.apple.com/quicktime/"></embed>
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<br><font class="searchcopysm"><a href="video4.html#transcript">Read Transcript</a> | <a href="menu-video.html">Back to Menu</a></font><br><br>
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<!------------END VIDEO------------>
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<font class="searchcopysm">
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If you don't see the movie playing,
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<a href="http://www.apple.com/quicktime/download/" target=_new>Download Quicktime 5</a>
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</font><br><br>
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<font class="pophead"><!------HEADING HERE------>
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Networking</font><br>
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<font class="popcopy"><!------TEXT HERE------>
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Working on the SAGE system spurred a generation of
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computer scientists and engineers to think about
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computers in new ways. They came to believe that
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computers could be interactive communications
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devices as well as calculators. The goal of computer
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networking lay behind some of the most important
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technical developments of the 1960s and 1970s. This
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animation describes the evolution of networking
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technology.</font><br><br>
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<table cellpadding="7" cellspacing="0" border="0" width="100%"><tr><td bgcolor="#cccccc">
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<font class="popcopy"><!------TRANSCRIPT HERE------>
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<a name="transcript">Transcript:</a><br>
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The first computers could be used only by one
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person, in one place. In order to make computers
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more accessible, scientists developed ways to let
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them switch from user to user and task to task. This
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was called time-sharing. Many businesses and
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academic centers built large time-sharing systems.
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Scientists wanted to connect these systems into
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networks, but each spoke a different language. The
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solution was to build a special kind of computer to be
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a partner for every "host" computer system. Each
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host talked to its partner, and the partners talked to
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each other. Another obstacle to networking was that
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if every message had a whole line dedicated to it, as
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in a telephone call, then huge traffic jams would
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occur. So every message was divided into small
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parts, or packets, that traveled through the network
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independently. Many packet-switched networks
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sprang up, but they could not connect to each other
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because they did not share a common language.
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TCP/IP was developed to be that common language,
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enabling thousands upon thousands of networks to
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be linked together in the vast network of networks we
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call . . . the Internet.</font></td>
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</tr>
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</table>
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<br>
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<!-------BEGIN PREV / NEXT--------->
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<a href="menu-video.html"><img src="../../../images/pop-backtomenu.gif" border="0"></a>
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<!-------END PREV / NEXT--------->
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<!-------END PREV / NEXT--------->
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</table>
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</td>
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</tr>
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<!-------END ENTRY---------->
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</table><br>
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<br><br><br><br><br><br><br><br><br><br><br><br>
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<hr/>
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<div id="archivemeta">
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<strong>First published: </strong>23 October 2001<br/><strong>Last updated: </strong>11 August 2009<br/><strong>Date Archived: </strong>04 January 2012<br/><a href="http://www.nlm.nih.gov/cgi/viewMeta.pl?url=http://www.nlm.nih.gov/archive//20120104/onceandfutureweb/database/seca/case5-artifacts/video4.html&description=full" onclick="javascript:openPopup('http://www.nlm.nih.gov/cgi/viewMeta.pl?url=http://www.nlm.nih.gov/archive//20120104/onceandfutureweb/database/seca/case5-artifacts/video4.html&description=full'); return false;"><strong>Metadata</strong></a> | <strong> <a href="http://www.nlm.nih.gov/permlevels.html"onclick="javascript:openPopup('http://www.nlm.nih.gov/permlevels.html'); return false;">Permanence level</a>: </strong>Permanent: Stable Content<br/>
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<p> </p>
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<p> </p>
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<table width="100%" border="0" cellpadding="0" cellspacing="0" id="archeader">
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<tr id="breadcrumb" >
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<td colspan="5"><span id="arccontainerfooter">Home > <strong>NLM Archives</strong> > </span> <span id="disclaimerfooter"><strong>Document content is not current. Links may be broken.</strong></span><span class="spacer"></span></td>
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<span id="subLeft"><a href="http://www.nlm.nih.gov/copyright.html">Copyright</a>, <a href="http://www.nlm.nih.gov/privacy.html">Privacy</a>, <a href="http://www.nlm.nih.gov/accessibility.html">Accessibility</a><br />
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