The Internet and Web <ul><li>Internet Technology </li></ul><ul><li>Internet Communications </li></ul><ul><li>Web technolog...
4.1  Internet Technology What is the Internet? <ul><li>Computer Network </li></ul><ul><li>Internet Backbone </li></ul><ul>...
Visualization of the Internet’s topology from  http://www.cybergeography.org/atlas/topology.html   What is the Internet?
A Brief History of the Internet <ul><li>Listen to ethan zuckerman as he talks about the history of the Internet </li></ul>...
Internet Growth www.internetworldstats.com   The Web arrives
Internet Hardware <ul><li>The  Internet backbone  consists of the main pathways and connections of the Internet owned prim...
Internet Hardware <ul><li>Network Service Providers </li></ul><ul><ul><li>Major telecom companies that provide the Interne...
Internet Hardware <ul><li>Points of Presence (POPs) </li></ul><ul><ul><li>Facilities provided by Network Service Providers...
Internet Hardware <ul><li>Routers: computing devices that manage network traffic by evaluating data packets and routing th...
Packet Switching <ul><li>A  packet switching network  divides all network data into small packets for faster, more efficie...
Packet Switching learned more than I thought in those wonderful lectures that I had previously written you about…. Divided...
Packet Switching Packet headers added Dear Joan, Hi! How’s it goin’?  Just finished midterms, and it Message 3761HZA  Date...
Packet Switching Each packet sent individually over the network Demo at  http://acns.fsu.edu/~zeisler/usedu.html Dear Joan...
Packet Switched Network email email Router Router Router Router Router Router Router Router Router Router Router Router Ro...
Circuit Switched Network
Packet Switching <ul><li>Packet switching is much more efficient than circuit switching. </li></ul>Technology:   Networkin...
Internet Protocols <ul><li>Protocols  are rules that govern how data is transmitted and received. </li></ul><ul><li>They g...
Internet Protocols <ul><li>TCP/IP </li></ul><ul><ul><li>Transaction Control Protocol (TCP): Divides data into packets for ...
Network Architectures <ul><li>Client/Server </li></ul><ul><li>Peer-to-Peer </li></ul>Original Napster vs. Kazaa
4.2  Web Technology What is the Web? <ul><li>Hyperlink </li></ul><ul><li>HTTP </li></ul><ul><li>Web browser </li></ul><ul>...
The Web <ul><li>The  World Wide Web  is an Internet-based service that provides convenient access to information through  ...
Web Protocols & Standards <ul><li>HTTP:  Hypertext Transfer Protocol defines and controls communication between Web server...
Web Protocols & Standards <ul><li>HTML:  Hypertext Markup Language is the formatting language used to define the appearanc...
Web Protocols & Standards <ul><li>Many of today’s popular applications store files in XML format for easy data sharing.  <...
Web-Authoring Software <ul><li>Web Authoring Software allows you to create HTML documents using word-processor-like softwa...
Programming the Web <ul><li>Cookies  are data generated by a Web server, and stored on your computer. </li></ul><ul><li>Us...
Web Browser Plug-Ins <ul><li>A plug-in is a program that works with the browser to offer extended services –typically the ...
Web Browser Plug-Ins <ul><li>Content streaming allows media files to play while they are being delivered by the Web server...
4.3  Internet and Web Applications How are they used? <ul><li>Search engine </li></ul><ul><li>Web Portal </li></ul><ul><li...
The Internet & Web The Internet The Web Communications E-commerce Information Distribution
Web Tools <ul><li>Search Engines:  Helps us find information on the Web through keyword searches of databases built by  sp...
Communication and Collaboration <ul><li>Face to Face </li></ul><ul><li>Video + Voice </li></ul><ul><li>Voice Only </li></u...
Communication and Collaboration <ul><li>Synchronous Communication takes place in real time. </li></ul><ul><ul><li>Phone co...
Communication and Collaboration <ul><li>Face-to-face </li></ul><ul><li>Video conferencing </li></ul><ul><li>Phone (voice) ...
Researchers at  Caltech’s VRVS lab  are able to video Conference from 36,000 feet above the Pacific Ocean.
<ul><li>Text based Communication </li></ul><ul><ul><li>Email </li></ul></ul><ul><ul><ul><li>Attachments </li></ul></ul></u...
Worlds Chat with avatars in a 3D virtual environmnt
<ul><li>Blogs  ( Web logs )  are websites created to express one or more individual’s views on a given topic (ie.  http://...
<ul><li>Vlog (Vodcast) </li></ul><ul><ul><li>Video-based blogs ( www.vlogdir.com/ )  </li></ul></ul><ul><li>Consumer Gener...
Voice over IP (VoIP) <ul><li>Technology that enables network managers to route phone calls over the same network they use ...
Residential VoIP <ul><li>Residential VoIP, Broadband Phone </li></ul><ul><ul><li>Phone service over a broadband Internet c...
Video Conferencing <ul><li>Video conferencing  is a technology that combines video and voice communications along with doc...
News and Information <ul><li>On-line news services allow you to drill-down into the story to get background information an...
Education and Training <ul><li>Life-long learning is your future… </li></ul><ul><li>NETg Offers… </li></ul><ul><li>1,850 I...
E-commerce <ul><li>E-commerce has opened up new opportunities in buying and selling. </li></ul>
Travel <ul><li>The Web has transformed the travel industry. </li></ul>
Employment and Careers <ul><li>The Web assists us in researching career possibilities: </li></ul><ul><ul><li>Selecting a c...
Information <ul><li>Research on the Web </li></ul><ul><ul><li>Subject Directories, and Search Engines </li></ul></ul><ul><...
The Future Internet <ul><li>Internet2  is a research and development consortium led by over 200 U.S. universities and supp...
High-Speed Internet Applications <ul><li>Interactive Collaboration </li></ul>Long distance collaboration and education. ww...
High-Speed Internet Applications <ul><li>Real-time access to remote Resources </li></ul>Scientists can control the astrono...
High-Speed Internet Applications <ul><li>Large-scale Multisite Computation and Data Mining </li></ul><ul><li>Shared Virtua...
Chapter 4 Questions? Don’t forget to turn your phone on!!
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Succeeding with Technology Succeeding with Technology

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Succeeding with Technology Succeeding with Technology

  1. 1. The Internet and Web <ul><li>Internet Technology </li></ul><ul><li>Internet Communications </li></ul><ul><li>Web technology </li></ul><ul><li>Web Applications </li></ul>Please discontinue use of cell phone and turn off ringer
  2. 2. 4.1 Internet Technology What is the Internet? <ul><li>Computer Network </li></ul><ul><li>Internet Backbone </li></ul><ul><li>Internet Service Provider (ISP) </li></ul><ul><li>Routers </li></ul><ul><li>Dial-up Connection </li></ul><ul><li>Cable modem connection </li></ul><ul><li>DSL connection </li></ul><ul><li>DSS connection </li></ul><ul><li>Protocols </li></ul><ul><li>TCP/IP </li></ul><ul><li>IP Address </li></ul><ul><li>Client/server </li></ul><ul><li>Port </li></ul><ul><li>Peer-to-peer (P2P) </li></ul>Key Terms
  3. 3. Visualization of the Internet’s topology from http://www.cybergeography.org/atlas/topology.html What is the Internet?
  4. 4. A Brief History of the Internet <ul><li>Listen to ethan zuckerman as he talks about the history of the Internet </li></ul>http://www.zakon.org/robert/internet/timeline/
  5. 5. Internet Growth www.internetworldstats.com The Web arrives
  6. 6. Internet Hardware <ul><li>The Internet backbone consists of the main pathways and connections of the Internet owned primarily by telecom companies. </li></ul>http://en.wikipedia.org/wiki/Internet_backbone Verizon’s/MCI’s UUNet carries 28% of Internet traffic
  7. 7. Internet Hardware <ul><li>Network Service Providers </li></ul><ul><ul><li>Major telecom companies that provide the Internet backbone. </li></ul></ul>http://navigators.com/isp.html Network Service Providers 27.9% Verizon/MCI/UUNET 10.0% AT&T 6.5% Sprint 6.3% Genuity (level 3) 4.1% PSINet 3.5% Cable & Wireless 2.8% XO Communications 2.6% Verio 1.5% Qwest
  8. 8. Internet Hardware <ul><li>Points of Presence (POPs) </li></ul><ul><ul><li>Facilities provided by Network Service Providers that allow users to connect to the Internet backbone. </li></ul></ul><ul><li>Internet Service Providers </li></ul><ul><ul><li>Companies that provide users with access to the Internet. </li></ul></ul><ul><ul><li>Dial-up vs. DSS vs. Cell vs. DSL vs. Cable </li></ul></ul><ul><ul><li>Top 22 ISP’s: http://www.isp-planet.com/research/rankings/usa.html </li></ul></ul>
  9. 9. Internet Hardware <ul><li>Routers: computing devices that manage network traffic by evaluating data packets and routing them to their destination. </li></ul>http://computer.howstuffworks.com/router1.htm The Cisco CRS-1 router is controlled by a unique self-heating and self-defending operating system designed for always-on operation while scaling system capacity up to 92 Tbps. Routers such as this one manage traffic on the Internet Backbone. 7’
  10. 10. Packet Switching <ul><li>A packet switching network divides all network data into small packets for faster, more efficient delivery. </li></ul>Dear Joan, Hi! How’s it goin’? Just finished midterms, and it looks like I might graduate this semester after all! :-) My computer teacher is really great and I guess that I learned more than I thought in those wonderful lectures that I had previously written you about…. An email message
  11. 11. Packet Switching learned more than I thought in those wonderful lectures that I had previously written you about…. Divided into packets looks like I might graduate this semester after all! :-) My computer teacher is really great and I guess that I Dear Joan, Hi! How’s it goin’? Just finished midterms, and it
  12. 12. Packet Switching Packet headers added Dear Joan, Hi! How’s it goin’? Just finished midterms, and it Message 3761HZA Date May 1 Packet 1 of 3 From sweetykb@aol.com To joan_kelly@yale.edu learned more than I thought in those wonderful lectures that I had previously written you about…. Message 3761HZA Date May 1 Packet 3 of 3 From sweetykb@aol.com To joan_kelly@yale.edu looks like I might graduate this semester after all! :-) My computer teacher is really great and I guess that I Message 3761HZA Date May 1 Packet 2 of 3 From sweetykb@aol.com To joan_kelly@yale.edu
  13. 13. Packet Switching Each packet sent individually over the network Demo at http://acns.fsu.edu/~zeisler/usedu.html Dear Joan, Hi! How’s it goin’? Just finished midterms, and it Message 3761HZA Date May 1 Packet 1 of 3 From sweetykb@aol.com To joan_kelly@yale.edu looks like I might graduate this semester after all! :-) My computer teacher is really great and I guess that I Message 3761HZA Date May 1 Packet 2 of 3 From sweetykb@aol.com To joan_kelly@yale.edu learned more than I thought in those wonderful lectures that I had previously written you about…. Message 3761HZA Date May 1 Packet 3 of 3 From sweetykb@aol.com To joan_kelly@yale.edu
  14. 14. Packet Switched Network email email Router Router Router Router Router Router Router Router Router Router Router Router Router Router Router
  15. 15. Circuit Switched Network
  16. 16. Packet Switching <ul><li>Packet switching is much more efficient than circuit switching. </li></ul>Technology:   Networking/Telecoms Wednesday 28 May 2003 Sprint moves to packet-switch network Sprint is to change its entire circuit-switched telephone network to packet technology in an attempt to keep up with customer demand for capacity. Sprint's eight million lines will be moved over to the packet-based asynchronous transfer mode (ATM) system, allowing voice, video and data to be broken down into small digital blocks and sent, in effect, simultaneously.This allows the network to be used more efficiently, and will also allow new multimedia services, Sprint said. Sprint is the first major telecoms company to move all of its local, tandem and long-distance networks over to packet technology, according to Nortel Networks spokeswoman Ann Fuller.
  17. 17. Internet Protocols <ul><li>Protocols are rules that govern how data is transmitted and received. </li></ul><ul><li>They govern all Network and Internet communications: </li></ul><ul><ul><li>The Internet </li></ul></ul><ul><ul><li>The Web </li></ul></ul><ul><ul><li>Email </li></ul></ul><ul><ul><li>Instant Messaging </li></ul></ul><ul><ul><li>Etc. </li></ul></ul>Ports are numeric addresses assigned to specific network services, and used in packet headers to direct data packets to the appropriate service. See http://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers
  18. 18. Internet Protocols <ul><li>TCP/IP </li></ul><ul><ul><li>Transaction Control Protocol (TCP): Divides data into packets for transmission, and reassembles data from packets upon delivery. </li></ul></ul><ul><ul><li>Internet Protocol (IP): Controls the delivery of packets between IP addresses. </li></ul></ul><ul><li>IP Address </li></ul><ul><ul><li>a 32-bit number that identifies each sender or receiver of information that is sent in packets across the Internet. </li></ul></ul><ul><ul><li>10000000.11111111.10110101.00010111 </li></ul></ul><ul><ul><li>128.255.181.29 </li></ul></ul><ul><ul><li>www.fsu.edu </li></ul></ul><ul><ul><li>http://checkip.dyndns.org/ </li></ul></ul>
  19. 19. Network Architectures <ul><li>Client/Server </li></ul><ul><li>Peer-to-Peer </li></ul>Original Napster vs. Kazaa
  20. 20. 4.2 Web Technology What is the Web? <ul><li>Hyperlink </li></ul><ul><li>HTTP </li></ul><ul><li>Web browser </li></ul><ul><li>Web server </li></ul><ul><li>URL </li></ul><ul><li>HTML </li></ul><ul><li>XML </li></ul><ul><li>Web authoring software </li></ul><ul><li>Cookies </li></ul><ul><li>Plug-in </li></ul><ul><li>Content Streaming </li></ul>Key Terms
  21. 21. The Web <ul><li>The World Wide Web is an Internet-based service that provides convenient access to information through hyperlinks . </li></ul>
  22. 22. Web Protocols & Standards <ul><li>HTTP: Hypertext Transfer Protocol defines and controls communication between Web server and client (Web browser). </li></ul><ul><li>URL: Uniform Resource Locator is the fancy name for a Web address. </li></ul>http://www.icann.org/ http://www.cs.fsu.edu/~baldauf/presentations/swt/2/index.html Domain name
  23. 23. Web Protocols & Standards <ul><li>HTML: Hypertext Markup Language is the formatting language used to define the appearance of Web pages. </li></ul><ul><ul><li>Try View Source in IE </li></ul></ul><ul><li>XML: New and popular standard for describing and classifying data in Web pages and other Web services. </li></ul>
  24. 24. Web Protocols & Standards <ul><li>Many of today’s popular applications store files in XML format for easy data sharing. </li></ul>
  25. 25. Web-Authoring Software <ul><li>Web Authoring Software allows you to create HTML documents using word-processor-like software </li></ul>Macromedia’s Dreamweaver software allows you to design Webpages and Websites using a WYSIWYG interface.
  26. 26. Programming the Web <ul><li>Cookies are data generated by a Web server, and stored on your computer. </li></ul><ul><li>Used to target marketing or customize a webpage when you next visit the server. </li></ul><ul><li>Demo www.amazon.com </li></ul><ul><ul><li>IE/Tools/Options/Settings/ </li></ul></ul>
  27. 27. Web Browser Plug-Ins <ul><li>A plug-in is a program that works with the browser to offer extended services –typically the ability to view animations or video, listen to music, or interact with the Webpage. </li></ul><ul><ul><li>Popular plug-ins include Flash , Quicktime & latest Windows Media Player . </li></ul></ul>Demos: http://harrypotter.warnerbros.com http://getitnow.vzwshop.com/vcast.home.do http://www.toyota.com/vehicles/2005/prius/int360.html
  28. 28. Web Browser Plug-Ins <ul><li>Content streaming allows media files to play while they are being delivered by the Web server. </li></ul>www.movies.com
  29. 29. 4.3 Internet and Web Applications How are they used? <ul><li>Search engine </li></ul><ul><li>Web Portal </li></ul><ul><li>Synchronous communication </li></ul><ul><li>Asynchronous communication </li></ul><ul><li>E-mail </li></ul><ul><li>E-mail attachment </li></ul><ul><li>Instant messaging (IM) </li></ul><ul><li>Chat </li></ul><ul><li>SMS Text messaging </li></ul><ul><li>Blogs </li></ul><ul><li>Video Conferencing </li></ul><ul><li>Telecommuting </li></ul>Key Terms
  30. 30. The Internet & Web The Internet The Web Communications E-commerce Information Distribution
  31. 31. Web Tools <ul><li>Search Engines: Helps us find information on the Web through keyword searches of databases built by spiders or crawlers ( http://a9.com/ ). </li></ul><ul><li>Subject Directories: A catalog of sites collected and organized by people. </li></ul><ul><li>Portals: Web pages that serve as entry points to the Web. </li></ul>
  32. 32. Communication and Collaboration <ul><li>Face to Face </li></ul><ul><li>Video + Voice </li></ul><ul><li>Voice Only </li></ul><ul><li>Text Only </li></ul>Effectiveness
  33. 33. Communication and Collaboration <ul><li>Synchronous Communication takes place in real time. </li></ul><ul><ul><li>Phone conversation </li></ul></ul><ul><ul><li>Instant Messaging </li></ul></ul><ul><li>Asynchronous Communication allows participants to leave messages to be accessed whenever. </li></ul><ul><ul><li>Voice mail </li></ul></ul><ul><ul><li>Email </li></ul></ul><ul><ul><li>SMS Texting </li></ul></ul>
  34. 34. Communication and Collaboration <ul><li>Face-to-face </li></ul><ul><li>Video conferencing </li></ul><ul><li>Phone (voice) </li></ul><ul><li>Instant messaging/Chat </li></ul><ul><li>Voice mail </li></ul><ul><li>Email </li></ul><ul><li>SMS Texting </li></ul>Synchronous Asynchronous Effectiveness Convenience
  35. 35. Researchers at Caltech’s VRVS lab are able to video Conference from 36,000 feet above the Pacific Ocean.
  36. 36. <ul><li>Text based Communication </li></ul><ul><ul><li>Email </li></ul></ul><ul><ul><ul><li>Attachments </li></ul></ul></ul><ul><ul><li>Instant messaging (IM) </li></ul></ul><ul><ul><li>Chat </li></ul></ul>Communication and Collaboration
  37. 37. Worlds Chat with avatars in a 3D virtual environmnt
  38. 38. <ul><li>Blogs ( Web logs ) are websites created to express one or more individual’s views on a given topic (ie. http://www.bloglines.com/topblogs ) </li></ul><ul><ul><li>A blog aggregator is software that allows you to subscribe to numerous blogs (ie. http://www.bradsoft.com/feeddemon/ ) </li></ul></ul><ul><li>A Podcast is an audio file that contains a recorded broadcast distributed over the Internet for use on PC or Mobile media device. </li></ul><ul><ul><li>Podcast Aggregator: provides access to podcasts that may be set to automatically download to your PC (iTunes). </li></ul></ul>Communication and Collaboration RSS (Really Simple Syndication) A web-content distribution technology
  39. 39. <ul><li>Vlog (Vodcast) </li></ul><ul><ul><li>Video-based blogs ( www.vlogdir.com/ ) </li></ul></ul><ul><li>Consumer Generated Media is the recent trend of the general public capturing and reporting the news. </li></ul>Communication and Collaboration How does consumer genereated media compare to main stream media? www.current.tv
  40. 40. Voice over IP (VoIP) <ul><li>Technology that enables network managers to route phone calls over the same network they use for data. </li></ul>Future of Phones: http://newsroom.cisco.com/dlls/video_audio_archive/?all Also see Video Telephony
  41. 41. Residential VoIP <ul><li>Residential VoIP, Broadband Phone </li></ul><ul><ul><li>Phone service over a broadband Internet connection. </li></ul></ul><ul><ul><li>http://www.voipchoices.com/vonage.html </li></ul></ul>
  42. 42. Video Conferencing <ul><li>Video conferencing is a technology that combines video and voice communications along with document sharing. </li></ul>Telecommunications is the process of working from locations away from the office by using telecommunications technologies.
  43. 43. News and Information <ul><li>On-line news services allow you to drill-down into the story to get background information and details. </li></ul>Webcasting uses the Web to deliver news video footage.
  44. 44. Education and Training <ul><li>Life-long learning is your future… </li></ul><ul><li>NETg Offers… </li></ul><ul><li>1,850 IT and desktop e-Learning courses </li></ul><ul><li>1,300 business and professional development e-Learning courses </li></ul><ul><li>2,000 up to date, searchable, IT, Desktop and Business Books from Safari </li></ul><ul><li>250 instructor and student manuals for ILT training </li></ul>
  45. 45. E-commerce <ul><li>E-commerce has opened up new opportunities in buying and selling. </li></ul>
  46. 46. Travel <ul><li>The Web has transformed the travel industry. </li></ul>
  47. 47. Employment and Careers <ul><li>The Web assists us in researching career possibilities: </li></ul><ul><ul><li>Selecting a career </li></ul></ul><ul><ul><li>Researching companies </li></ul></ul><ul><ul><li>Networking with colleagues </li></ul></ul><ul><ul><li>Searching want ads </li></ul></ul><ul><ul><li>Creating Resumes & Professional Websites </li></ul></ul>
  48. 48. Information <ul><li>Research on the Web </li></ul><ul><ul><li>Subject Directories, and Search Engines </li></ul></ul><ul><ul><li>Issues of reliability </li></ul></ul><ul><ul><li>Library Web sites </li></ul></ul><ul><ul><li>Research Databases </li></ul></ul>Consumers are increasingly reliant upon online resources to ease and inform major life events.
  49. 49. The Future Internet <ul><li>Internet2 is a research and development consortium led by over 200 U.S. universities and supported by partnerships with industry and government to develop and deploy advanced network applications and technologies for tomorrow’s Internet. </li></ul><ul><li>The National LambdaRail (NLR), or Internet3 is a cross country, high-speed fiber-optic network dedicated to researching high-speed networking applications. </li></ul>
  50. 50. High-Speed Internet Applications <ul><li>Interactive Collaboration </li></ul>Long distance collaboration and education. www.accessgrid.com/ Two dancers in different locations dance together.
  51. 51. High-Speed Internet Applications <ul><li>Real-time access to remote Resources </li></ul>Scientists can control the astronomical telescopes at Gemini observatories in Hawaii and Chile from any location on Internet2.
  52. 52. High-Speed Internet Applications <ul><li>Large-scale Multisite Computation and Data Mining </li></ul><ul><li>Shared Virtual Reality </li></ul>Consider the future of www.secondlife.com
  53. 53. Chapter 4 Questions? Don’t forget to turn your phone on!!

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