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Chapter2 網際網路概論

Chapter2 網際網路概論. Instructor: Cheng-Ta Lee 李政達 E-mail: ctlee@mail.it.fit.edu.tw The slides are saved in http://ec.it.fit.edu.tw/ecdata/echandout/ec. 網際網路概論內容. History What is Internet? The Internet 依 protocol and computers 來分類 Communication with Three Servers Internet Data

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Chapter2 網際網路概論

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  1. Chapter2 網際網路概論 Instructor: Cheng-Ta Lee 李政達 E-mail: ctlee@mail.it.fit.edu.tw The slides are saved in http://ec.it.fit.edu.tw/ecdata/echandout/ec

  2. 網際網路概論內容 • History • What is Internet? • The Internet • 依 protocol and computers來分類 • Communication with Three Servers • Internet Data • 誰在 Internet 上賺錢？ • 網際網路的目前與未來 網際網路概論

  3. History • 1960s ARPANET Goal : Fault Tolerant • 1969 ARPANET 連接美國四間大學的 mainframe computers • 在隨後的幾年裡, 政府組織也連接上 ARPANET • 1991, NSF allowed 商業組織連上 Internet 網際網路概論

  4. What is Internet? The Internet is a network of network, or an “internetwork,” linking computers worldwide. In its physical form, the Internet is composed of wires, routers, and communication links. It is similar in many respects to today’s telephone system. 網際網路概論

  5. The Internet Router Network 網際網路概論

  6. 依 protocol and computers來分類 • 校園 (Core Internet)：TCP/IP and Apple PowerPCs、desktop Windows PCs、UNIX-based computers. • 商業 (Consumer Internet)：IPX/SPX and Novell Netware. Now! TCP/IP and desktop Windows PCs. 網際網路概論

  7. Communication with Three Servers NetWare (Novell) File Server UNIX Server Windows 2003 Server Client PC (Windows XP) IPX/SPX (TCP/IP) TCP/IP TCP/IP 網際網路概論

  8. Internet Data (Nov. 2009) • 12% growth in users • exponential growth in host computers • exponential increase in network bandwidth • Source:Focus Internet News and Data 網際網路概論

  9. 「台灣經常上網人口」達1060萬戶(Nov. 2009) 網際網路概論

  10. 2009年第3季各技術連線速率 網際網路概論

  11. 誰在 Internet 上賺錢？ • 1991-1993：硬體廠商 • 1993-1996：Internet Service Provider (ISP) • 1994-present：寬頻 (high bandwidth) ISP • 1995-present:Information Service Provider 網際網路概論

  12. 目前 IPv4 Low Bandwidth Single Function 無法辨識資料屬性 Charges based on usage 網際網路的目前與未來 未來 • IPv6 • High Bandwidth • Multiple Function • 可辨識資料屬性如：priority • Charges based on traffic patterns and content 網際網路概論

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