What is Networking | How is it work Computer Networking & OSI Layers ?


Networking Introduction.

A computer network is composed of multiple connected computers for communicated the wired and wireless to share the DATA and other resources. Printer using a network to communicate the PC and Printer as well as controlling the software also via a network ( as Protocols .)

A simple network is the may be constructed from two computers by using the DATA transfer that type using the Cable required is Cross Cable. The use of Straight Cable for Internet and communication. of the network. We have shared the information on the Network Type of Wired.

Types of Wired Network  

1) Personal Area Network ( PAN )
2) Local Area Network ( LAN )
3) Campus Area Network ( CAN )
4) Metropolitan Area Network ( MAN )
5) Wide Area Network ( WAN )

Types Of Wireless Networks 

 Wireless LAN  one of type wireless network is called a wireless local area Network .it is the same 
other wireless devices .it uses by radio instead of wires to transmit data back and forth between computers on the same network

1) WI-FI 
2) Fixed Wireless DATA

Wireless MAN 

Mobile Devices Networks
1) Global System For Mobile communications 
2) Personal Communications Service
3) D-AMPS ( Digital Advanced Mobile Phone Service )


The network is Depend on OSI Model


Layer
7
Application
6
Presentation
5
Session
4
Transport
3
Network
2
DATA Link
1
Physical

"Shortcuts" For OSI Model to Remember: APSTNDP /PDNTSPA

   
Network Devices 

1) Network Interface Cards
2) Repeaters
3) Hubs 
4) Bridges 
5) Switches
6) Routers

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