?8? ?????Internet??

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?8? ?????Internet??

• 8.1 ???????
• 8.2 ??????????
• 8.3 Internet???

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8.1 ???????

• 8.1.1 ???????????
• 8.1.2 ????????
• 8.1.3 ????????
• 8.1.4 ??????????

????
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8.1.1 ???????????

• 1.????????
• ???????????????????????????????????????????,?????
  ???????????????????????
• 2.????????
• (1)?????
• (2)?????
• (3)??????

????
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8.1.2 ????????

• 1.????
• 2.????
• 3.????

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?8-1 ??????????
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1.????

• (1)???????(CCP)?
• (2)???(Concentrator)?
• (3)?????(Modem)?
• (4)??????

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2.????

• (1)????(Host)?
• (2)??(Terminal)

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3.????

• ?????????????????,??????????????????????,?????????
  ??????????????????????

????
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8.1.3 ????????

• 1.?????????
• ???????????????,?????????(WAN)????(MAN)????(LAN)?
  
• 2.????????????
• ??????????,????????????????????????????????????

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• (1)???WAN(Wide Area Network)
• ??????????????,??????????????????????(host),??????
  (communication sub net)??,?????????????

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• (2)???MAN(Metropolitan Area Network)
• ????????????,?????????????,?????????????????10Mbps
  ??,?????10?50?????

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• (3)???LAN(Local area network)
• ????????????????????,????????(???)???????,????????
  ?????????,??????????????

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(1)???????

• ???????????????????????????????????????????
• ????????????????(????????????,????????,????????)
  ????????????????????????????

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(2)??????

• ???????????????????,????????,??????????????????
  ?
• ??????????????????,?????????????????????,??????
  ??

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(3)???????

• ????????????????????????????????
• ???????????????????,???????????????????????

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?8-2 ?????????
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?8-3 ????????
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?8-4 ???????
????
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8.1.4 ??????????

• 1.??????????
• 2.????????????

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1.????????????

• (1)?????????
• (2)?????
• (3)????????
• (4)????????
• (5)???????? ?

21
???????

• (1)?????????????????
• (2)?????????????,???????????????
• (3)???????????????

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?8-5 ?????????????
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2.????????????

• (1)??????
• (2)??(Protocol)??????????????????????????????

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(1)?????( OSI?? )

• (1)???(physical layer)
• (2)?????(data link layer)
• (3)???(network layer)
• (4)???(transport layer)
• (5)???(session layer)
• (6)???(presentation layer)
• (7)???(application layer)

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?8-6 ??????OSI????
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?8-7 ?????????????
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(2)??(Protocol)

• 1)Ethernet(???)???????,???OSI???????????????
• 2)NetBEUI(Net BIOS Enhanced User
  Interface)??????????????,??NetBEUI??WinNT??Microso
  ft?80?????????????????????
• 3)IPX/SPX(Internet work Packet eXchange/Sequential
  Packet eXchange)?NetWare??????????????,?????Novel
  l?????,????Novell??????
• 4)TCP/IP(Transmission Control Protocol/Internet
  Protocol),?????????/?????

????
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8.2 ??????????

• 8.2.1 ??????
• 8.2.2 ????????
• 8.2.3 ????????

????
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8.2.1 ??????

• (1)??????????????,???10Mbps??,?????????1000Mbps?
• (2)????????????,??????10-7?10-12???
• (3)?????????????,???????????????
• (4)????????????????????,??????????????????????????
  ????????
• (5)?????,??????????????????????LNA(Local Network
  Adapter)????(??)??

????
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8.2.2 ????????

• 1.?????
• 2.???
• 3.??
• 4.????

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1.?????

• ???????????,?????????????????????????
• ?????????????,????????????????
• ?????????????,????????????????????????

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2.???

• ??????,???????????,???????????????????????????????
  CPU(??RAM)?????????????????,?????????????,????????
  ?????????????,??,??????????????????????

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3.??

• ???????
• (1)????????????????????????????,??????????????????
  ???,?????????
• (2)??????????????????,????????,?????????,????,????
  ????
• (3)????????????????
• (4)???????????
• (5)?????????????

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4.????

• ??????????????????????????
• (1)???(Twisted Pair)
• (2)????(Coaxial Cable)
• (3)??(Optical Fiber)
• (4)????

????
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8.2.3 ????????

• 1.????????
• 2.????
• 3.??NT Server???
• 4.??Windows 95/98?NT???

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1.????????

• (1)????
• (2)????(???)
• (3)??
• (4)????

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2.????

• ??????????,??????????(HUB)????
• (1)??
• (2)??????

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3.??NT Server???

• (1)???????????????NTFS,??NTFS???WinNT???,?????????
  ???????????? ?
• (2)??????NT Server?,??????IIS(Internet
  Information Server)Web??,?????????????
• (3)????NT????,??????????NT????

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4.??Windows 95/98?NT???
?8-9 ??TCP/IP??
?8-10 TCP/IP??IP?????
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?8-12 ??????????
?8-11 TCP/IP???????
????
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8.3 Internet???

• 8.3.1 Internet??
• 8.3.2 IP?????
• 8.3.3 ??Windows?Internet??
• 8.3.4 WWW????
• 8.3.5 ?Outlook Express??????
• 8.3.6 ????(FTP)?????(Telnet)

????
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8.3.1 Internet??

• ??????????????
• (1)????????NII(???????)?????????GII???????
• (2)?????????Internet???????????????
• (3)???????????????????,?????????

43

• 1.Internet???
• 2.Internet???
• 3.Internet???
• 4.Internet???
• 5.Internet?????
• 6.??Internet?????

44
1.Internet???

• Internet?????,??????????????,??????????????,??????
  ??????Internet????????????????,???????????????????
  ???????????,??????????????????????

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2.Internet???

• Internet?????ARPANET????????,ARPANET?????????????

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3.Internet???

• Internet?????????????????Internet?????????????5???
  ????????????????????????????

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4.Internet???

• ?1983??1994??Internet???????,???NSFNET??????,??Int
  ernet??????????????????
• 1990?? 1991?,IBM?MCI? Merit?????????????????????
  ANS(Advanced Network Services)???
  NSFNET?????NSFNET??????,????Internet??????????

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5.Internet?????

• Internet?????/???(Client/Server)????????????Intern
  et?,?????????,?Internet Explorer(??IE)?Netscape,??
  ????,????????????????????????????????,????????????
  ??????????????????????????????????????????????????
  ??

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6.??Internet?????

• (1)???????
• (2)???????
• (3)???????
• (4)????????
• (5)??????????

????
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8.3.2 IP?????

• IP??
• ??IP???????????????????????????,IP????Internet????
  ?????,??Internet??IP???????????????

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????

• ???????????,?????????IP??,????????IP???????
• ??????????????????????,??bta.net.cn??????????????
  ?????????DNS(Domain Name System)?????????,????????
  ?????????IP???

????
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8.3.3 ??Windows?Internet??

• 1.???????????
• 2.??TCP/IP????
• 3.??????
• 4.??????
• 5.????

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1.???????????
?6-19 ??????
?6-18 ???????
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2.??TCP/IP????
?8-16 ?????????
?8-15 ???????????
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3.??????

• ?????????????(PSTN)??Internet,????????????????????
  Internet?????????,?????????,?????

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4.??????
?8-21 ????????(1)
?8-20 ??????
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5.????

• ???????????,?????Modem????

?8-25 ??????
????
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8.3.4 WWW????

• 1.???WWW
• 2.???
• 3.??????

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1.???WWW

• Web(?WWW)????(Word Wide Web)????WWW????????(Hyper
  text)?????????,??Internet?????????????
• WWW?????/???(Client/Server)?????????????Internet?
  ????????????????Web????
• WWW????????URL(Uniform Resource
  Locator)???????????????????

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2.???

• (1)IE????
• (2)IE???
• (3)?????
• (4)????????

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3.??????

• (1)???????
• (2)??????????
• (3)??????

????
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8.3.5 ?Outlook Express??????

• 1.??E-mail??
• 2.???????
• 3.??????????
• 4.?????????
• 5.????????
• 6.?????

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1.??E-mail??

• ??E-mail?????ISP??,?Internet???????????E-mail???

?8-37 ?163??????E-mail??
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?8-38 ????????
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2.???????

• (1)????????????
• ???????E-mail???
• ???????????????E-mail???
• ?????????????
• (2)????????????????

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3.??????????

• (1)????,?????????????
• (2)??Outlook Express 5.0?
• (3)???????
• (4)??????
• (5)????

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4.?????????
?8-48 ??????
68
5.????????

• (1)?????
• (2)????

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?8-50 ??????
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?8-50 ??????
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6.?????

• ?Outlook Express??????????????????????????????????
  

????
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8.3.6 ????(FTP)?????(Telnet)

• 1.????(FTP)
• 2.????Telnet?BBS

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1.????(FTP)

• ????(FTP)???Internet????????????,????????????????
  ???Internet???????????????????,???TCP/IP??????????
  FTP(File Transfer Protocol)???,???????????????????
  ????,????????????
• FTP??????????/????????
• FTP?????????????

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???FTP?????

• ftp.bup.edu.cn ftp.nankai.edu.cn
  ftp.pku.edu.cn
• ftp.tsinghua.edu.cn ftp.download.edu.cn
  ftp.cdrom.com
• ftp.esnet.com ftp.netscape.com
  ftp.netcom.com
• ftp.shareware.com ftp.winsite.com
  ftp.microsoft.com

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?8-52 ?IE??FTP??
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2.????Telnet?BBS

• ????Telnet?Internet?????????,?????????????????????
  ?Telnet???????????Telnet?????,?TCP/IP?????????????
  ?????????Windows?????Telnet.exe???

????
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Thank you very much!
??????!
????
??