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Networks
• 146 BC - Greeks use torch signals
• 1830s - Electric telegraph
• 1870s - Telephone
• 1920s - AM radio
• 1930s - Television
• 1960s - FM radio
• 1970s - Computer networks
The Internet?
• A network of networks
• Companies, schools have their own networks
• E-mail, the World Wide Web, FTP are ways of sending info over the Internet
The Internet?
• A network of networks
• Companies, schools have their own networks
• E-mail, the World Wide Web, FTP are ways of sending info over the Internet
How does it work?
• I figure out what information I want and where it is
• I make a request to the server
How does it work?
• I figure out what information I want and where it is
• I make a request to the server
• The server sends back my info
How does it work?
• I figure out what information I want and where it is
• I make a request to the server
• The server sends back my info
• (A server is any computer that can send out data in response to a request)
HTML?
• Hypertext Markup Language
• Defines the structure of a web page
<h1>This is a heading</h1><h2>A sub-heading</h2><p>This is a paragraph!</p>
Blue Scholars on MySpaceLet’s check out the Blue Scholars’ MySpace page
www.myspace.com
Blue Scholars on MySpaceLet’s check out the Blue Scholars’ MySpace page
www.myspace.com
Give me the Blue Scholars’ page!
Blue Scholars on MySpaceLet’s check out the Blue Scholars’ MySpace page
www.myspace.com
Give me the Blue Scholars’ page!
Ok here it goes:
Blue Scholars on MySpaceLet’s check out the Blue Scholars’ MySpace page
www.myspace.com
Give me the Blue Scholars’ page!
Ok here it goes:<!-- ProfileV1 NH--><html xmlns:myspace="http://x.myspacecdn.com/modules/sitesearch/static/rdf/profileschema.rdf#"><!-- UserViewProfile --><head><meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" /><script type="text/javascript"> //<![CDATA[var MySpace = {};var MySpaceRes = {};MySpaceRes.Common = {"Yes":"Yes","No":"No","Ok":"Ok","Attention":"Attention"};MySpaceRes.Header = {"Cancel":"Cancel / Cancelación","Continue":"Continue / Continuar"};MySpace.ClientContext = {"UserId":-1,"DisplayFriendId":1450027,"IsLoggedIn":false,"FunctionalContext":"UserViewProfile","UserType":1};
MySpace.StaticContentBase='http://x.myspacecdn.com'; MySpace.ClientMaintenanceConfigs = {"asyncphotobrowsecaching":0,"msplinksconvertall":0,"photocommentsajax":0,"inf_ind_newvideocomment":0,"musicjv_amazoninplace":0,"enablevideocategorydropdown":0,"applications_userapppreferences":0,"inf_ind_unreadim":0,"webimtestclient":0,"applications_showafterloaduhp":0,"applications_showafterloadprofiles":0,"applications_enablev2settingspopup":0,"musicjv_allmyplaylists":0,"inf_ind_newclassified":0,"webimcoldfusion":0,"webimclientrichtexteditor":0,"mdpcontaineruseopencanvas":0,"inf_ind_newautotag":0,"applications_enableopenidpopuphandling":0,"applications_removeonappprofile":0,"friendselectorinstatusmooddialog":0,"musicjv_debug":0,"photoquickpostmessaging":0,"mdp_enable_homeappnavdragdrop":0,"musicjv_stoprefresh_medrec":0,"mystuffautos":0,"mystuffreportabusepost":0,"dwbeaconmusicsearch":0,"dashboard_songstats":0,"dashboard_corestats":0,"dashboard_trends":0,"dashboard_artistrank":0,"dashboard_agegender":0,"dashboard_visitorsfriends":0,"dashboard_map":0,"dashboard_blogstats":0,"mystuffuploadphotos":0,"dwbeaconclientv2":0,"dashboard_monetization":0,"dwbeaconphotoprint":0,"mdpactivitiesautopublish":0,"dwbeaconpymk":0};MySpace.ClientIntMaintenanceConfigs = {};//]]></script><title> Blue Scholars on MySpace Music - Free Streaming MP3s, Pictures & Music Downloads</title><meta name="keywords" content="friends networking sharing photos finding friends blogs journals blogging journaling bands music rate pics join groups forums classifieds online social networking" /><meta property="myspace:profileType" content="Music" about="Blue Scholars" typeof="myspace:MusicProfile" ><meta name="description" content="MySpace Music profile for Blue Scholars. Download Blue Scholars Hip Hop / House / Tropical music singles, watch music videos, listen to free streaming mp3s, & read Blue Scholars's blog." /><meta http-equiv="expires" content="0" /><meta http-equiv="Pragma" content="no-cache" /><script type="text/javascript" src="http://js.myspacecdn.com/modules/common/static/js/swfobject-15_pba8crsx.js"></script>
<script type="text/javascript">MySpace.Ads = {};MySpace.Ads.Account = {"Type":"7"};MySpace.Ads.BandType = {"Genre1":"21","Genre2":"22","Genre3":"92","LabelType":""};MySpace.Header = {}; MySpace.Header.IsTrueGlobalHeaderEnabled = false; MySpace.Header.Navigation = {};MySpace.Header.Navigation.OnAfterRender = function(){};
</script><script type="text/javascript" src="http://js.myspacecdn.com/modules/common/static/js/myspace_gocrglkv.js"></script><script type="text/javascript" src="http://cms.myspacecdn.com/cms/js/ad_wrapper0143.js"></script>
<script type="text/javascript">MySpace.ProfileClientContext = {"ProfileType":7,"ProfileVersion":1,"PrivateToUser":false};
</script>
<link rel="canonical" href="http://www.myspace.com/bluescholars" /><link rel="stylesheet" type="text/css" href="http://x.myspacecdn.com/modules/common/static/css/myspace_jVtNwmP4.css" />
<link rel="stylesheet" type="text/css" href="http://x.myspacecdn.com/modules/common/static/css/global_hu7nbz0y.css" /><link rel="stylesheet" type="text/css" href="http://x.myspacecdn.com/modules/profiles/static/css/profilelegacy_odkpcpi9.css" /><link rel="openid2.provider" type="application/x-openid-kvf" href="http://api.myspace.com/openid" /><link rel="stylesheet" type="text/css" href="http://x.myspacecdn.com/modules/profiles/static/css/musicv2_wo4zzzd-.css" />
<style type="text/css">
Blue Scholars on MySpaceLet’s check out the Blue Scholars’ MySpace page
www.myspace.com
Ok here it goes:<!-- ProfileV1 NH--><html xmlns:myspace="http://x.myspacecdn.com/modules/sitesearch/static/rdf/profileschema.rdf#"><!-- UserViewProfile --><head><meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" /><script type="text/javascript"> //<![CDATA[var MySpace = {};var MySpaceRes = {};MySpaceRes.Common = {"Yes":"Yes","No":"No","Ok":"Ok","Attention":"Attention"};MySpaceRes.Header = {"Cancel":"Cancel / Cancelación","Continue":"Continue / Continuar"};MySpace.ClientContext = {"UserId":-1,"DisplayFriendId":1450027,"IsLoggedIn":false,"FunctionalContext":"UserViewProfile","UserType":1};
MySpace.StaticContentBase='http://x.myspacecdn.com'; MySpace.ClientMaintenanceConfigs = {"asyncphotobrowsecaching":0,"msplinksconvertall":0,"photocommentsajax":0,"inf_ind_newvideocomment":0,"musicjv_amazoninplace":0,"enablevideocategorydropdown":0,"applications_userapppreferences":0,"inf_ind_unreadim":0,"webimtestclient":0,"applications_showafterloaduhp":0,"applications_showafterloadprofiles":0,"applications_enablev2settingspopup":0,"musicjv_allmyplaylists":0,"inf_ind_newclassified":0,"webimcoldfusion":0,"webimclientrichtexteditor":0,"mdpcontaineruseopencanvas":0,"inf_ind_newautotag":0,"applications_enableopenidpopuphandling":0,"applications_removeonappprofile":0,"friendselectorinstatusmooddialog":0,"musicjv_debug":0,"photoquickpostmessaging":0,"mdp_enable_homeappnavdragdrop":0,"musicjv_stoprefresh_medrec":0,"mystuffautos":0,"mystuffreportabusepost":0,"dwbeaconmusicsearch":0,"dashboard_songstats":0,"dashboard_corestats":0,"dashboard_trends":0,"dashboard_artistrank":0,"dashboard_agegender":0,"dashboard_visitorsfriends":0,"dashboard_map":0,"dashboard_blogstats":0,"mystuffuploadphotos":0,"dwbeaconclientv2":0,"dashboard_monetization":0,"dwbeaconphotoprint":0,"mdpactivitiesautopublish":0,"dwbeaconpymk":0};MySpace.ClientIntMaintenanceConfigs = {};//]]></script><title> Blue Scholars on MySpace Music - Free Streaming MP3s, Pictures & Music Downloads</title><meta name="keywords" content="friends networking sharing photos finding friends blogs journals blogging journaling bands music rate pics join groups forums classifieds online social networking" /><meta property="myspace:profileType" content="Music" about="Blue Scholars" typeof="myspace:MusicProfile" ><meta name="description" content="MySpace Music profile for Blue Scholars. Download Blue Scholars Hip Hop / House / Tropical music singles, watch music videos, listen to free streaming mp3s, & read Blue Scholars's blog." /><meta http-equiv="expires" content="0" /><meta http-equiv="Pragma" content="no-cache" /><script type="text/javascript" src="http://js.myspacecdn.com/modules/common/static/js/swfobject-15_pba8crsx.js"></script>
<script type="text/javascript">MySpace.Ads = {};MySpace.Ads.Account = {"Type":"7"};MySpace.Ads.BandType = {"Genre1":"21","Genre2":"22","Genre3":"92","LabelType":""};MySpace.Header = {}; MySpace.Header.IsTrueGlobalHeaderEnabled = false; MySpace.Header.Navigation = {};MySpace.Header.Navigation.OnAfterRender = function(){};
</script><script type="text/javascript" src="http://js.myspacecdn.com/modules/common/static/js/myspace_gocrglkv.js"></script><script type="text/javascript" src="http://cms.myspacecdn.com/cms/js/ad_wrapper0143.js"></script>
<script type="text/javascript">MySpace.ProfileClientContext = {"ProfileType":7,"ProfileVersion":1,"PrivateToUser":false};
</script>
<link rel="canonical" href="http://www.myspace.com/bluescholars" /><link rel="stylesheet" type="text/css" href="http://x.myspacecdn.com/modules/common/static/css/myspace_jVtNwmP4.css" />
<link rel="stylesheet" type="text/css" href="http://x.myspacecdn.com/modules/common/static/css/global_hu7nbz0y.css" /><link rel="stylesheet" type="text/css" href="http://x.myspacecdn.com/modules/profiles/static/css/profilelegacy_odkpcpi9.css" /><link rel="openid2.provider" type="application/x-openid-kvf" href="http://api.myspace.com/openid" /><link rel="stylesheet" type="text/css" href="http://x.myspacecdn.com/modules/profiles/static/css/musicv2_wo4zzzd-.css" />
<style type="text/css">
Blue Scholars on MySpaceLet’s check out the Blue Scholars’ MySpace page
www.myspace.com
Ok here it goes:<!-- ProfileV1 NH--><html xmlns:myspace="http://x.myspacecdn.com/modules/sitesearch/static/rdf/profileschema.rdf#"><!-- UserViewProfile --><head><meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" /><script type="text/javascript"> //<![CDATA[var MySpace = {};var MySpaceRes = {};MySpaceRes.Common = {"Yes":"Yes","No":"No","Ok":"Ok","Attention":"Attention"};MySpaceRes.Header = {"Cancel":"Cancel / Cancelación","Continue":"Continue / Continuar"};MySpace.ClientContext = {"UserId":-1,"DisplayFriendId":1450027,"IsLoggedIn":false,"FunctionalContext":"UserViewProfile","UserType":1};
MySpace.StaticContentBase='http://x.myspacecdn.com'; MySpace.ClientMaintenanceConfigs = {"asyncphotobrowsecaching":0,"msplinksconvertall":0,"photocommentsajax":0,"inf_ind_newvideocomment":0,"musicjv_amazoninplace":0,"enablevideocategorydropdown":0,"applications_userapppreferences":0,"inf_ind_unreadim":0,"webimtestclient":0,"applications_showafterloaduhp":0,"applications_showafterloadprofiles":0,"applications_enablev2settingspopup":0,"musicjv_allmyplaylists":0,"inf_ind_newclassified":0,"webimcoldfusion":0,"webimclientrichtexteditor":0,"mdpcontaineruseopencanvas":0,"inf_ind_newautotag":0,"applications_enableopenidpopuphandling":0,"applications_removeonappprofile":0,"friendselectorinstatusmooddialog":0,"musicjv_debug":0,"photoquickpostmessaging":0,"mdp_enable_homeappnavdragdrop":0,"musicjv_stoprefresh_medrec":0,"mystuffautos":0,"mystuffreportabusepost":0,"dwbeaconmusicsearch":0,"dashboard_songstats":0,"dashboard_corestats":0,"dashboard_trends":0,"dashboard_artistrank":0,"dashboard_agegender":0,"dashboard_visitorsfriends":0,"dashboard_map":0,"dashboard_blogstats":0,"mystuffuploadphotos":0,"dwbeaconclientv2":0,"dashboard_monetization":0,"dwbeaconphotoprint":0,"mdpactivitiesautopublish":0,"dwbeaconpymk":0};MySpace.ClientIntMaintenanceConfigs = {};//]]></script><title> Blue Scholars on MySpace Music - Free Streaming MP3s, Pictures & Music Downloads</title><meta name="keywords" content="friends networking sharing photos finding friends blogs journals blogging journaling bands music rate pics join groups forums classifieds online social networking" /><meta property="myspace:profileType" content="Music" about="Blue Scholars" typeof="myspace:MusicProfile" ><meta name="description" content="MySpace Music profile for Blue Scholars. Download Blue Scholars Hip Hop / House / Tropical music singles, watch music videos, listen to free streaming mp3s, & read Blue Scholars's blog." /><meta http-equiv="expires" content="0" /><meta http-equiv="Pragma" content="no-cache" /><script type="text/javascript" src="http://js.myspacecdn.com/modules/common/static/js/swfobject-15_pba8crsx.js"></script>
<script type="text/javascript">MySpace.Ads = {};MySpace.Ads.Account = {"Type":"7"};MySpace.Ads.BandType = {"Genre1":"21","Genre2":"22","Genre3":"92","LabelType":""};MySpace.Header = {}; MySpace.Header.IsTrueGlobalHeaderEnabled = false; MySpace.Header.Navigation = {};MySpace.Header.Navigation.OnAfterRender = function(){};
</script><script type="text/javascript" src="http://js.myspacecdn.com/modules/common/static/js/myspace_gocrglkv.js"></script><script type="text/javascript" src="http://cms.myspacecdn.com/cms/js/ad_wrapper0143.js"></script>
<script type="text/javascript">MySpace.ProfileClientContext = {"ProfileType":7,"ProfileVersion":1,"PrivateToUser":false};
</script>
<link rel="canonical" href="http://www.myspace.com/bluescholars" /><link rel="stylesheet" type="text/css" href="http://x.myspacecdn.com/modules/common/static/css/myspace_jVtNwmP4.css" />
<link rel="stylesheet" type="text/css" href="http://x.myspacecdn.com/modules/common/static/css/global_hu7nbz0y.css" /><link rel="stylesheet" type="text/css" href="http://x.myspacecdn.com/modules/profiles/static/css/profilelegacy_odkpcpi9.css" /><link rel="openid2.provider" type="application/x-openid-kvf" href="http://api.myspace.com/openid" /><link rel="stylesheet" type="text/css" href="http://x.myspacecdn.com/modules/profiles/static/css/musicv2_wo4zzzd-.css" />
<style type="text/css">
Cool, thanks!
Blue Scholars on MySpaceLet’s check out the Blue Scholars’ MySpace page
www.myspace.com
Ok here it goes:<!-- ProfileV1 NH--><html xmlns:myspace="http://x.myspacecdn.com/modules/sitesearch/static/rdf/profileschema.rdf#"><!-- UserViewProfile --><head><meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" /><script type="text/javascript"> //<![CDATA[var MySpace = {};var MySpaceRes = {};MySpaceRes.Common = {"Yes":"Yes","No":"No","Ok":"Ok","Attention":"Attention"};MySpaceRes.Header = {"Cancel":"Cancel / Cancelación","Continue":"Continue / Continuar"};MySpace.ClientContext = {"UserId":-1,"DisplayFriendId":1450027,"IsLoggedIn":false,"FunctionalContext":"UserViewProfile","UserType":1};
MySpace.StaticContentBase='http://x.myspacecdn.com'; MySpace.ClientMaintenanceConfigs = {"asyncphotobrowsecaching":0,"msplinksconvertall":0,"photocommentsajax":0,"inf_ind_newvideocomment":0,"musicjv_amazoninplace":0,"enablevideocategorydropdown":0,"applications_userapppreferences":0,"inf_ind_unreadim":0,"webimtestclient":0,"applications_showafterloaduhp":0,"applications_showafterloadprofiles":0,"applications_enablev2settingspopup":0,"musicjv_allmyplaylists":0,"inf_ind_newclassified":0,"webimcoldfusion":0,"webimclientrichtexteditor":0,"mdpcontaineruseopencanvas":0,"inf_ind_newautotag":0,"applications_enableopenidpopuphandling":0,"applications_removeonappprofile":0,"friendselectorinstatusmooddialog":0,"musicjv_debug":0,"photoquickpostmessaging":0,"mdp_enable_homeappnavdragdrop":0,"musicjv_stoprefresh_medrec":0,"mystuffautos":0,"mystuffreportabusepost":0,"dwbeaconmusicsearch":0,"dashboard_songstats":0,"dashboard_corestats":0,"dashboard_trends":0,"dashboard_artistrank":0,"dashboard_agegender":0,"dashboard_visitorsfriends":0,"dashboard_map":0,"dashboard_blogstats":0,"mystuffuploadphotos":0,"dwbeaconclientv2":0,"dashboard_monetization":0,"dwbeaconphotoprint":0,"mdpactivitiesautopublish":0,"dwbeaconpymk":0};MySpace.ClientIntMaintenanceConfigs = {};//]]></script><title> Blue Scholars on MySpace Music - Free Streaming MP3s, Pictures & Music Downloads</title><meta name="keywords" content="friends networking sharing photos finding friends blogs journals blogging journaling bands music rate pics join groups forums classifieds online social networking" /><meta property="myspace:profileType" content="Music" about="Blue Scholars" typeof="myspace:MusicProfile" ><meta name="description" content="MySpace Music profile for Blue Scholars. Download Blue Scholars Hip Hop / House / Tropical music singles, watch music videos, listen to free streaming mp3s, & read Blue Scholars's blog." /><meta http-equiv="expires" content="0" /><meta http-equiv="Pragma" content="no-cache" /><script type="text/javascript" src="http://js.myspacecdn.com/modules/common/static/js/swfobject-15_pba8crsx.js"></script>
<script type="text/javascript">MySpace.Ads = {};MySpace.Ads.Account = {"Type":"7"};MySpace.Ads.BandType = {"Genre1":"21","Genre2":"22","Genre3":"92","LabelType":""};MySpace.Header = {}; MySpace.Header.IsTrueGlobalHeaderEnabled = false; MySpace.Header.Navigation = {};MySpace.Header.Navigation.OnAfterRender = function(){};
</script><script type="text/javascript" src="http://js.myspacecdn.com/modules/common/static/js/myspace_gocrglkv.js"></script><script type="text/javascript" src="http://cms.myspacecdn.com/cms/js/ad_wrapper0143.js"></script>
<script type="text/javascript">MySpace.ProfileClientContext = {"ProfileType":7,"ProfileVersion":1,"PrivateToUser":false};
</script>
<link rel="canonical" href="http://www.myspace.com/bluescholars" /><link rel="stylesheet" type="text/css" href="http://x.myspacecdn.com/modules/common/static/css/myspace_jVtNwmP4.css" />
<link rel="stylesheet" type="text/css" href="http://x.myspacecdn.com/modules/common/static/css/global_hu7nbz0y.css" /><link rel="stylesheet" type="text/css" href="http://x.myspacecdn.com/modules/profiles/static/css/profilelegacy_odkpcpi9.css" /><link rel="openid2.provider" type="application/x-openid-kvf" href="http://api.myspace.com/openid" /><link rel="stylesheet" type="text/css" href="http://x.myspacecdn.com/modules/profiles/static/css/musicv2_wo4zzzd-.css" />
<style type="text/css">
Blue Scholars on MySpaceLet’s check out the Blue Scholars’ MySpace page
www.myspace.com
<!-- ProfileV1 NH--><html xmlns:myspace="http://x.myspacecdn.com/modules/sitesearch/static/rdf/profileschema.rdf#"><!-- UserViewProfile --><head><meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7" /><script type="text/javascript"> //<![CDATA[var MySpace = {};var MySpaceRes = {};MySpaceRes.Common = {"Yes":"Yes","No":"No","Ok":"Ok","Attention":"Attention"};MySpaceRes.Header = {"Cancel":"Cancel / Cancelación","Continue":"Continue / Continuar"};MySpace.ClientContext = {"UserId":-1,"DisplayFriendId":1450027,"IsLoggedIn":false,"FunctionalContext":"UserViewProfile","UserType":1};
MySpace.StaticContentBase='http://x.myspacecdn.com'; MySpace.ClientMaintenanceConfigs = {"asyncphotobrowsecaching":0,"msplinksconvertall":0,"photocommentsajax":0,"inf_ind_newvideocomment":0,"musicjv_amazoninplace":0,"enablevideocategorydropdown":0,"applications_userapppreferences":0,"inf_ind_unreadim":0,"webimtestclient":0,"applications_showafterloaduhp":0,"applications_showafterloadprofiles":0,"applications_enablev2settingspopup":0,"musicjv_allmyplaylists":0,"inf_ind_newclassified":0,"webimcoldfusion":0,"webimclientrichtexteditor":0,"mdpcontaineruseopencanvas":0,"inf_ind_newautotag":0,"applications_enableopenidpopuphandling":0,"applications_removeonappprofile":0,"friendselectorinstatusmooddialog":0,"musicjv_debug":0,"photoquickpostmessaging":0,"mdp_enable_homeappnavdragdrop":0,"musicjv_stoprefresh_medrec":0,"mystuffautos":0,"mystuffreportabusepost":0,"dwbeaconmusicsearch":0,"dashboard_songstats":0,"dashboard_corestats":0,"dashboard_trends":0,"dashboard_artistrank":0,"dashboard_agegender":0,"dashboard_visitorsfriends":0,"dashboard_map":0,"dashboard_blogstats":0,"mystuffuploadphotos":0,"dwbeaconclientv2":0,"dashboard_monetization":0,"dwbeaconphotoprint":0,"mdpactivitiesautopublish":0,"dwbeaconpymk":0};MySpace.ClientIntMaintenanceConfigs = {};//]]></script><title> Blue Scholars on MySpace Music - Free Streaming MP3s, Pictures & Music Downloads</title><meta name="keywords" content="friends networking sharing photos finding friends blogs journals blogging journaling bands music rate pics join groups forums classifieds online social networking" /><meta property="myspace:profileType" content="Music" about="Blue Scholars" typeof="myspace:MusicProfile" ><meta name="description" content="MySpace Music profile for Blue Scholars. Download Blue Scholars Hip Hop / House / Tropical music singles, watch music videos, listen to free streaming mp3s, & read Blue Scholars's blog." /><meta http-equiv="expires" content="0" /><meta http-equiv="Pragma" content="no-cache" /><script type="text/javascript" src="http://js.myspacecdn.com/modules/common/static/js/swfobject-15_pba8crsx.js"></script>
<script type="text/javascript">MySpace.Ads = {};MySpace.Ads.Account = {"Type":"7"};MySpace.Ads.BandType = {"Genre1":"21","Genre2":"22","Genre3":"92","LabelType":""};MySpace.Header = {}; MySpace.Header.IsTrueGlobalHeaderEnabled = false; MySpace.Header.Navigation = {};MySpace.Header.Navigation.OnAfterRender = function(){};
</script><script type="text/javascript" src="http://js.myspacecdn.com/modules/common/static/js/myspace_gocrglkv.js"></script><script type="text/javascript" src="http://cms.myspacecdn.com/cms/js/ad_wrapper0143.js"></script>
<script type="text/javascript">MySpace.ProfileClientContext = {"ProfileType":7,"ProfileVersion":1,"PrivateToUser":false};
</script>
<link rel="canonical" href="http://www.myspace.com/bluescholars" /><link rel="stylesheet" type="text/css" href="http://x.myspacecdn.com/modules/common/static/css/myspace_jVtNwmP4.css" />
<link rel="stylesheet" type="text/css" href="http://x.myspacecdn.com/modules/common/static/css/global_hu7nbz0y.css" /><link rel="stylesheet" type="text/css" href="http://x.myspacecdn.com/modules/profiles/static/css/profilelegacy_odkpcpi9.css" /><link rel="openid2.provider" type="application/x-openid-kvf" href="http://api.myspace.com/openid" /><link rel="stylesheet" type="text/css" href="http://x.myspacecdn.com/modules/profiles/static/css/musicv2_wo4zzzd-.css" />
<style type="text/css">
Blue Scholars on MySpaceLet’s check out the Blue Scholars’ MySpace page
www.myspace.com
IP addresses
• Every computer on the Internet has a unique address (ex.: 74.125.67.100)
• Domain Name Servers (DNS) map names to addresses
You: 67.171.16.158
DNS server: 208.67.222.222
IP addresses
• Every computer on the Internet has a unique address (ex.: 74.125.67.100)
• Domain Name Servers (DNS) map names to addresses
You: 67.171.16.158
Where’s myspace.com?
DNS server: 208.67.222.222
IP addresses
• Every computer on the Internet has a unique address (ex.: 74.125.67.100)
• Domain Name Servers (DNS) map names to addresses
You: 67.171.16.158
Where’s myspace.com?
216.178.38.116DNS server: 208.67.222.222
IP addresses
• Every computer on the Internet has a unique address (ex.: 74.125.67.100)
• Domain Name Servers (DNS) map names to addresses
You: 67.171.16.158
Where’s myspace.com?
216.178.38.116
myspace.com: 216.178.38.116
DNS server: 208.67.222.222
IP addresses
• Every computer on the Internet has a unique address (ex.: 74.125.67.100)
• Domain Name Servers (DNS) map names to addresses
You: 67.171.16.158
Where’s myspace.com?
216.178.38.116
myspace.com: 216.178.38.116
Where’s www.myspace.com
DNS server: 208.67.222.222
IP addresses
• Every computer on the Internet has a unique address (ex.: 74.125.67.100)
• Domain Name Servers (DNS) map names to addresses
You: 67.171.16.158
Where’s myspace.com?
216.178.38.116
myspace.com: 216.178.38.116
Where’s www.myspace.com63.135.89.46
DNS server: 208.67.222.222
IP addresses
• Every computer on the Internet has a unique address (ex.: 74.125.67.100)
• Domain Name Servers (DNS) map names to addresses
You: 67.171.16.158
Where’s myspace.com?
216.178.38.116
myspace.com: 216.178.38.116
Where’s www.myspace.com
www.myspace.com: 63.135.89.46
63.135.89.46
DNS server: 208.67.222.222
IP addresses
• Every computer on the Internet has a unique address (ex.: 74.125.67.100)
• Domain Name Servers (DNS) map names to addresses
You: 67.171.16.158
Where’s myspace.com?
216.178.38.116
myspace.com: 216.178.38.116
Where’s www.myspace.com
www.myspace.com: 63.135.89.46
63.135.89.46
DNS server: 208.67.222.222Give me the Blue Scholars page
IP addresses
• Every computer on the Internet has a unique address (ex.: 74.125.67.100)
• Domain Name Servers (DNS) map names to addresses
You: 67.171.16.158
Where’s myspace.com?
216.178.38.116
myspace.com: 216.178.38.116
Where’s www.myspace.com
www.myspace.com: 63.135.89.46
63.135.89.46
DNS server: 208.67.222.222Give me the Blue Scholars page
Ok, here it goes!
A bunch of links and words
• “Crawlers” or “spiders” look at pages
• Extract all words and links
• Stores them in a table, much like the index of a book
• When you make a query, it’s looked up in the table
Page Ranking
• A page is important if a lot of important pages link to it
• Entire Internet gets to “vote”