1. www.kru-nice.com

2. Network)
1

3. 1.
2.
3.

4. 1.
2.
3.
4.
www.kru-nice.com

5. .
.
.
.
www.kru-nice.com

6. 1.
(source)
2.
6.
(noise)
(sink)
5.
3.
(decoding)
(channel)
4.
(encoding)

7. Data / Message
•
•
Sender
•
Receiver
Transmission Media
•
•
Protocal

8. 
Analog Signal


Amplitude
Digital Signal

Discrete

9. -
(Parallel Transimission)
(Serial Tranmission)

10. (Parallel Transimission)




11. (Parallel Transimission)
8
7
6
5
4
3
2
1
CPU

12. (Serial Tranmission)

10011110
0

1
8
2


(asynchronous data transmission)
(synchronous data transmission)

13. (Serial Tranmission)
8
7
6
5
4
1
3
2
2
3
4
5
6
7
8
1

14. (Serial Tranmission)
•
(dumb terminal)
(start bit)
(stop bit)
(bit per second)
"0"
"1"
1
8
1
10
•
2
1.
2.
(sinc character)
(clock signal)

15. (Serial Tranmission)

Parallel
Tranmission


16. (Simplex)
(Half Duplex)
(Full Duplex)
-

17. 1.
Twisted Pair)
Unshield Twisted Pair)
-
Coaxial
-
Fiber-Optic Cable
Core
Cladding
Shielded

18. .
-
Infrared : IR)
-
-
Microwave)
-
-

19. (Wide Area
Network : WAN)
(Personal Area
Network : PAN)
1
Computer
Network
(Local Area
Network : LAN)
(Metropolitan
Area Network :
MAN)

20. (Personal Area Network)

21. (Local Area Network)

22. (Metropolitan Area Network)

23. Wide Area Network

24. –
Client – Server Network
Peer – to – Peer Network : P2P Network
BitTorrent eDonkey
LimeWire

25. 
Architecture)


(Network
(Topology)
(
)
(Network Topology)

26. (Bus Topology)
1
2
(Ring Topology)
(Star Topology)
3
4
(Hybridge Topology)

27. (Bus Topology)
" " (BUS)
Collision

28. (Ring Topology)
(
)

29. (Star Topology)
Switch
(Hub)

30. (Mesh Topology)
Wide Are Network)

31. (Hybridge Topology)
WAN

32. (workgroup)
1.
2.
3.

33. (Wide Area Network : WAN)

34. 1.
(ethernet)
(Bus)
(coaxial
cable)
(hub)
(10 base t)
(unshielded twisted : UTP)

35. 2.
(token ring)
16

36. 3.
(switching)

38. INTERNET

39. INTERNET
. . 2512
. . 2524
/
(TCP/IP)
4

40. INTERNET

41. 
E-Mail


Real-Time Communication

Yahoo Messenger, Skype

Windows Live,
Social Networking Web Sites

GotoKnow
Facebook, Myspace, Linkedin, Hi5

42. 
Blog

GoogleBlog

Bloggang
Web Log
Blogger,
Microblog

Yammer, Jaiku

Tumblr
Twitter,
Wiki

Wikipedia, WIKIBOOKS

43. 
Really Simple Syndication : RSS


Commerce
Electronic Commerce
E-

FTP File Transfer Protocol

server)
standard network protocol)
receive file)
client)
hosting)

44. 1.
address
sombat@nontri.ku.ac.th
2.
3.
4.
Web : WWW)
5.
6.
(World Wide

45. 1.
2.
3.
4.
bcc
bcc
5.
6.
7.
8.
9.
10.
reply)
compose)
reply all)

46. Junk Mail

47. 1.
2.
3.
4.
www.bangpaeschool.ac.th

48. 1.
1.
2.
3.
:
:
:
www.bangpaeschool.ac.th

49. 2.
www.bangpaeschool.ac.th

50. 3.
www.bangpaeschool.ac.th

51. 4.
www.bangpaeschool.ac.th

54. www.kru-nice.com
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