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Chapter 6

Chapter 6. The Internet. Internet Technology. Background Internet Infrastructure Internet Protocols, Addresses, and Domains Connection Speed. Background. The ARPANET Internet connects computers all over the globe The Internet is the world’s largest network. Internet Infrastructure.

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Chapter 6

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  1. Chapter 6 The Internet Chapter 6: The Internet

  2. Internet Technology • Background • Internet Infrastructure • Internet Protocols, Addresses, and Domains • Connection Speed Chapter 6: The Internet

  3. Background • The ARPANET • Internet connects computers all over the globe • The Internet is the world’s largest network Chapter 6: The Internet

  4. Internet Infrastructure • Who owns it? • Internet backbone • Network service providers • Network access points • Internet service provider Chapter 6: The Internet

  5. Internet Infrastructure Chapter 6: The Internet

  6. Internet Infrastructure • To communicate with an ISP, your computer uses some type of communications device, such as a modem Chapter 6: The Internet

  7. Internet Protocols, Addresses, and Domains Chapter 6: The Internet

  8. Internet Protocols, Addresses, and Domains • Domain name Chapter 6: The Internet

  9. Internet Protocols, Addresses, and Domains Chapter 6: The Internet

  10. Connection Speed • Data travels over the Internet at an incredible speed • Latency • Upstream vs. downstream speed Chapter 6: The Internet

  11. Connection Speed • Asymmetric Internet connection • Symmetric Internet connection • Internet connection options • Fixed Internet access • Portable Internet access • Mobile Internet access Chapter 6: The Internet

  12. Fixed Internet Access • Dial-up Connections • DSL, ISDN, and Dedicated Lines • Cable Internet Service • Satellite Internet Service • Fixed Wireless Service • Fixed Internet Connection Roundup Chapter 6: The Internet

  13. Dial-up Connections • Dial-up connection Chapter 6: The Internet

  14. Dial-up Connections • Voiceband modem • Modem speed is measured in bits per second Chapter 6: The Internet

  15. DSL, ISDN, and Dedicated Lines • T Lines • ISDN Chapter 6: The Internet

  16. DSL DSL, ISDN, and Dedicated Lines Chapter 6: The Internet

  17. Cable Internet Service • Cable Internet Chapter 6: The Internet

  18. Cable Internet Service • Cable modem • Always-on connection Chapter 6: The Internet

  19. Satellite Internet Service • Satellite Internet service • Satellite modem Chapter 6: The Internet

  20. Satellite Internet Service Chapter 6: The Internet

  21. Fixed Wireless Service • Fixed wireless Internet service Chapter 6: The Internet

  22. Fixed Internet Connection Roundup Chapter 6: The Internet

  23. Portable and Mobile Internet Access • Internet to Go • Wi-Fi Hotspots • Portable and Mobile WiMAX • Portable Satellite Service • Cellular Data Service Chapter 6: The Internet

  24. Internet To Go • Portable Internet • Mobile Internet access Chapter 6: The Internet

  25. Wi-Fi Hotspots • Wi-Fi hotspot • Usually not good for mobile Internet access Chapter 6: The Internet

  26. Portable and Mobile WiMAX • WiMAX Chapter 6: The Internet

  27. Portable Satellite Service Chapter 6: The Internet

  28. Cellular Data Services • Cellular phone technology Chapter 6: The Internet

  29. Cellular Data Services • The fastest cellular technologies for Internet access are EDGE, EV-DO, and HSUPA • Cellular-ready PDA Chapter 6: The Internet

  30. Internet Services • Real-Time Messaging • Voice over IP • Grid Computing • FTP • File sharing Chapter 6: The Internet

  31. Real-Time Messaging • Real-time messaging system Chapter 6: The Internet

  32. Voice over IP • VoIP Chapter 6: The Internet

  33. Voice over IP • Advantages • Disadvantages Chapter 6: The Internet

  34. Grid Computing • Grid computing system Chapter 6: The Internet

  35. FTP Chapter 6: The Internet

  36. FTP Chapter 6: The Internet

  37. File Sharing • P2P file sharing • BitTorrent Chapter 6: The Internet

  38. Internet Security • Intrusion Attempts • Securing Ports • Routers and NAT • Virtual Private Networks Chapter 6: The Internet

  39. Intrusion Attempts • Intrusion • Port probe Chapter 6: The Internet

  40. Securing Ports • Turn off your computer when you’re not using it • Firewall Chapter 6: The Internet

  41. Securing Ports Chapter 6: The Internet

  42. Routers and NAT • Routers • Routable IP address • Private IP address Chapter 6: The Internet

  43. Routers and NAT Chapter 6: The Internet

  44. Routers and NAT • Network address translation (NAT) Chapter 6: The Internet

  45. Virtual Private Networks • Virtual private network (VPN) access • Access to a VPN is usually by invitation only. Chapter 6: The Internet

  46. Virtual Private Networks Chapter 6: The Internet

  47. Chapter 6 Complete The Internet Chapter 6: The Internet

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