Communication Network

• What is the Communication Network?
   Communication Network is a system that can be transfer data from one area to other area.
• There are 4 important things in Communication Network:

4. Data Transmission

3. Connection Divices or Communication Devices

1. Sending/Receiving Devices

2.Communiction Channel

• Communication Channel:
• Physic connection channel:
• Fiber Optic Cables
• Coaxial Cables
• Twisted Pair Cables
• Wireless connection channel
• Infrared
• Bluetooth
• Wi-Fi ( Wireless Firelity)
• Radio Frequency
• Satellite 
• Microwave
• Connection Devices or Communication Devices:
• Internal Modem
• External Modem
• PC card Modem
• Wireless Modem

The term of Computer Network 

1. Nodes
2. Host
3. Server
4. Client
5. Direct Server
6. Switch
7. HUB
8. NIC ( Network Interface Card )
9. NOS ( Network Operation System)
10. Network administration