Basic of Network

Introduction: 
Computer Network is a group of computer and devices which are connected with each other.It allows device to transfer,access each other data.It allows to share resources each other .It also helps to communicate with other devices like printer, scanner,cameras etc.

These days computer are used in huge amount every where so there is not easy to transfer every minute data through pen drive or hard drive .In big organization there are so many computers and the organization have also have other state or country branches, then it will be not easy to handle all department through hard-drive transfer.Network is essential part of our daily life and it make easier to communicate with any organization from one place and their is no need to hand any drive to transfer data.

Network are having divided into many  types mainly by their network size.As we know every persons have other protocol to communicate with other people means when a human communicate with a child then there where other protocol used, it will be different when they talk with boss or guardians.

So, In network there is also the rules or protocol to communicate with other device which is in network.The rules or protocol which i talk is OSI(Open Systems Interconnection) model.Simply, there are seven layer available in the OSI model and each layer have own functionality.

Need of Computer Network:

Use of a computer Network in Many purposes like:

• Sharing files, folders,data and information.
• sharing hardware resources such as computer Monitors.
• Sharing software, as many users connected to the network can run the same application program.
  

Network Configuration types:

• Client-Server Model
• Peer-to-peer Model

Types of Computer Network:

• Local Area network(LAN)
• Metropolitan Area Network(MAN)
• Wide Area Network(WAN)