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The Internet

The Internet. An Overview. Services. Internet Services World Wide Web E-mail File Transfer Newsgroups Message Board Chat Instant Messaging. History. Origination ARPANET — Networking Project by Pentagon Advanced Research Projects Agency (ARPA) Became Functional September 1969

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The Internet

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  1. The Internet An Overview

  2. Services • Internet Services • World Wide Web • E-mail • File Transfer • Newsgroups • Message Board • Chat • Instant Messaging

  3. History • Origination • ARPANET — Networking Project by Pentagon • Advanced Research Projects Agency (ARPA) • Became Functional September 1969 • Renamed Internet in the Late 1980s • World Wide Web Proposed In 1989 • Tim Berners-Lee

  4. History • Control • Public, Cooperative, & Independent Network • Internal Structure • Public & Private Organizations • Telephone, Cable, & Satellite Companies • Governments • World Wide Web Consortium (W3C) • Oversees Research, Sets Standards & Guidelines • Tim Berners-Lee, Director

  5. Internet Mechanics • Access Providers • ISP (Internet Service Provider) • OSP (Online Service Provider) • Member-only Features • AOL • MSN • Wireless

  6. Internet Mechanics • Addressing • IP (Internet Protocol) Address • Identifies Each Device Connected to Internet • Unique Number • 2.7/3.7 Billion Used • Run Out in 2012 • IPv6 = 3.4 x 1038 v. 232 • Domain Name • Text Version of IP Address

  7. Internet Mechanics • Addressing • TLD (Top Level Domain) • Identifies Type of Organization • ccTLD • Two-letter Country Code Outside US • ICANN Assigns & Controls TLDs • DNS (Domain Name System) • DNS Server • Translates Domain Name to IP Address

  8. World Wide Web • Collection of Electronic Documents • Worldwide • Each Document is Called a Web Page • Contains Text, Graphics, Sound, Video • Contains Links to Other Pages • Web Site • Collection of Related Web Pages

  9. World Wide Web • Web 2.0 • Allow Users to Modify Site Content • Way for Users to Share Personal Info • Have User Application Software Built into Site

  10. World Wide Web • Web Browser • Program that Allows You to View Web Pages • Internet Explorer • Spent $1.25 B • Netscape • Mozilla • Firefox • Safari

  11. World Wide Web • Web Addressing • URL (Uniform Resource Locator) • Unique Address for Page Located on Web Server protocol name domain path http://www.nationalgeographic.com/travel/index.html

  12. World Wide Web • Site Types • Standard • Portal • Search, News, Weather, Reference, Shopping • Blog (Web Log) • Informal Journal / Diary Posts • Reflect Interest & Opinion of Author

  13. World Wide Web • Site Types • Wiki • Collaborative Site • Users Create, Add, Modify, Delete Content • Content Aggregator • Gathers, Organizes, Distributes Content • RSS (Really Simple Syndication)

  14. World Wide Web • Multimedia • Graphics • GIF, JPG, PNG • Audio • MP3, WAV • Compression to 1/10 Original Size • Streaming • Transfers Data in Continuous & Even Flow • Podcast

  15. World Wide Web • Multimedia • Video • MPG, AVI, MOV, WMV • Vodcast • VR (Virtual Reality) • Second Life, There • Avatar • Plug-in • Programs that Extend Browser Capability

  16. Other Internet Services • E-Commerce • Shopping Cart • Collect Purchases • Online Auction • Paypal • Online Payment Service

  17. Other Internet Services • E-mail • Transmission of Messages Over Internet • Messages May Include Attachments • Files, Graphics, Audio, Video • Virus • Volume • 1.4 Billion Active Accounts Worldwide • 183 Billion E-mails Sent Daily in 2006 Radicati Group 10/06

  18. Other Internet Services • FTP (File Transfer Protocol) • Allows Upload / Download of Files • Files Located on FTP Servers • Use FTP Client Program to Access • Mailing List • Topical E-mail Discussion Group • You Must Subscribe to a Mailing List • E-mail Sent to Listserv • Listserv Distributes E-mail to All Subscribers

  19. Other Internet Services • Newsgroup • Users Conduct Written Topical Discussions • 65,000+ Topics • Stored on News Server • Usenet • Entire Collection of Newsgroups

  20. Other Internet Services • Newsgroup • User Sends Message to Newsgroup • AKA Article • Others in Newsgroup Read / Reply • AKA Thread • Read with Newsreader Program • FAQ (Frequently Asked Questions) • Find Out What is Appropriate for Newsgroup • Same Questions do not Need Repeated Answers

  21. Other Internet Services • Message Board • AKA Discussion Board • Web-based Version of Newsgroup • Newsreader not Required • Chat • Real-time Typed Conversation • Discuss Topics of Interest • Chat Room • Location on Server that Permits Discussion

  22. Other Internet Services • Instant Messaging (IM) • Real-time Typed Conversation • Indicate Who You Would Like to Speak With • AKA Buddy List • Notifies When One or More People Online • Exchange Messages or Files

  23. Other Internet Services • Internet Telephony (VoIP) • Voice Communication Over Internet • Replaces Standard Telephone Service • Vonage

  24. Netiquette • Code of Behavior • Emoticons & Smileys • :-) :-( ;-) :-o :’-( :o) • CAPS • 13-year-old Commits Suicide (10/06) • Fake MySpace Profile Created to Start Relationship

  25. Netiquette • Flaming • 58% Have Been Flamed Online • 40% More than Once • 53% Have Flamed Others Online • 33% More than Once • 35% Have Been Threatened Online • 20% More than Once • 58% Have Not Told Parents or Adult iSafe.org

  26. Netiquette • Flaming • 15 % Receive Unwanted Sexual Communication • During Past Year • Included • Solicitations for Sex • Conversations About Sex • Questions About Bra Size • Or Other Personal Sexual Information Internet Solutions for Kids

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