?????????? ???? A - PowerPoint PPT Presentation

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?????????? ???? A

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Title: ?????????? ???? A


1
??????????
2
???????????
Stand alone
??????????????, ?????????
??? A
??? B
??? C
3
???????????
?????????????????, ????????????????????
Network
??, ???????
??? A
??? B
??? C
4
???????????
Powerful
Server
??????? ?????? ???????
????? ?????
Client
Not always powerful
Client
Client
5
???????????
Local Area Network (LAN)
??????? ????
Internet ???????
6
?????????
???????????????(LAN)? TCP/IP???????????(??)??? ??
??????????
???
WWW(World Wide Web ???????????????)? ???????????
???????,WWW????????? ????????
7
??????????
  • ???????????????
  • ?????????????????????
  • ??????
  • (?LAN?????,???LAN???????)
  • ????????????????????,
  • ?????????????????????

8
????
  • IP????
  • ????????????????????????,?????IP??????????????????
    ???????
  • ?????
  • ????????IP?????????????????
  • ????????????
  • ?????
  • ??????????????????????????????
  • TCP/IP, http, telnet, ftp, pop, SMTP ??

9
???????
  • World Wide Web (http, https)
  • E-mail (pop, SMTP, imap)
  • ??????(ftp, sftp, P2P)
  • ????????(telnet, ssh, xdmcp, remote desktop)
  • IP??(VoIP, P2P)

10
WWW???????
mozilla
WWW???????
mozilla
xxxxyyyy_at_zzzz
xxxxyyyy_at_zzzz
11
Google??????
http//www.google.co.jp
??????????????????????Web???????
  • ?????????????????

??1770?12?16?
  • ???????????????????

??102-0082
12
Wikipedia??????
http//ja.wikipedia.org/
?????????????Web??? ??????????? ???????????
???????????????! ??, ????, ???????,
N700?, ??????????,???????
13
????(??????????)
?????
????????????? ???????????????? ???????????????! ??
???????????(????????)????2????????
? ??????????????????????????. ?
????????,????,??????????. ? 5?3?????????,?????1???
????????????????(????????).
14
????????
15
?????(E-mail)
??????a7abxxxx????????? a7abxxxx_at_cs.he.tohoku.ac.
jp
16
????????
  1. (????)???????
  2. ??????????????????????????
  3. ????????????????????
  4. ????????????,?????????????????????
  5. ?????????????????????????????????

?????????????,??????????????????????
17
??????
??????????? ???????????????????!
To ( ?? )
From ( ??? )
??????????? ???????????! ????
???????? ??????????????????!
Subject ( ?? )
???????????????? ??????????! ????????????
??
18
?????????
  • ??
  • ????????????
  • ???????????? ???????????!
  • ??????????

?? ????????????????????????????????????. ??1????
?c74a0ret_at_cs.he.tohoku.ac.jp ??3?????c76a0rjt_at_cs
.he.tohoku.ac.jp
19
???????
20
??????
Cc ( ??? ) ??? Bcc ( ?????? )
??????????????????????? CC????????????????????????
??! BCC?????????????????
Reply-To ( ??? )
?????????????
??????
?????????????? ????????????
??
????????????? ???????????????????????
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