(sender) (Receiver)(message)(Media)(protocal)

(sender) (Receiver) 2 (message)(Media)(protocal) www.dekdee.comhttp://www2.manager.co.th/asp-bin/Image.aspx?ID=25799005

http://sv6.postjung.com/wb/data/715/715494-topic-ix-3.jpg6..2379 (Samuel Morse)

http://sv6.postjung.com/wb/data/715/715494-topic-ix-3.jpg7..2419 (Alexander Graham Bell)

http://www.myinsulators.com/downtownseattle/phone3.jpghttps://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcRaBSQTHuEKokFNK5Lswxx80JzSFL-pQyvVMGoTLQNdp196FLZj8..2444 (Gugligomo Marconi)

http://www.hamradio.co.th/attachment.php?attachmentid=294&d=13740428639..2501

http://2.bp.blogspot.com/-05sY7mrPnbA/T5bC_-LqQjI/AAAAAAAAABY/OQy0Z4nyvf0/s1600/Satellite.jpg10..2512

http://1.bp.blogspot.com/-gUPGA0ZQONc/Uh9qXwX3EcI/AAAAAAAAAE0/MywyKINTbU4/s1600/Internet.jpghttp://3.bp.blogspot.com/-Gnf8E-FzhtQ/UEAkBluIWLI/AAAAAAAAAE4/_UbDfGAwJ2E/s1600/internet-marketing.jpg11..2513

http://galeon.com/myweballi/images/vocabulary/se.jpg12..2516 (Ethernet) (Token ring)

https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcRCH_HBp-PHaEDwxd2hWtzZJee2ogdmAb3Ln45W2wEO61QKceQehttp://3.bp.blogspot.com/-nYlwqanj5iE/T7oSOQvFC3I/AAAAAAAAARk/e5S45ePx5hA/s1600/topology-ring.jpg13..2522(cellular phone)

http://s.hswstatic.com/gif/who-invented-the-cell-phone-1.jpghttp://graphics8.nytimes.com/images/2013/03/17/magazine/17wmt/17wmt-articleLarge-v2.jpg14..2530

http://www.thaitelecomkm.org/TTE/topic/attach/Bluetooth_Technology/TTE_52_1_b.PNG15 (resource sharing)

http://www.school.net.th/library/snet1/hardware/network.gif171. 2.3. (printer) 4. 1. (Personal Area Network :PAN)2. (Local Area Network :LAN)3. (Metropolitan Area Network :MAN)4. (Wide Area Network :PAN) (Personal Area Network :PAN) (Wireless PAN: WPAN) 10 (Bluetooth technology)

(Local Area Network :LAN) (Local Area Network :LAN) 100

(Local Area Network :LAN) 10

(Local Area Network :LAN)(Wireless LAN: WLAN) (WiFi technology) 10 100 500 (Metropolitan Area Network :MAN) 1000 1 (Wide Area Network :WAN) (Wide Area Network :WAN) 1. -(Client-server network)2. (Peer to Peer network :P2P)(Server) (File server) (Mail Server)1. -(Client-server network)

2. (Peer to Peer network :P2P)