Computer Networks:

While you have two or more computers associated to each other, you have a network. The cause of a network is to make able the sharing of files and information among multiple systems. The Internet could be defined as a global network of networks. Computer networks can be associated through cables, such like Ethernet cables or phone lines, or wirelessly, by using wireless networking cards that send and receive data through the air.

Computer Network Components:

There are distinct components of a network. Following are the fundamental components of network.

1. Server:

It is a powerful computer that provides services to the other computers on the network.

2. Client:

It refer to as computer that uses the services that a server provides. It is less powerful than server.

3. Media:

A physical connection among the devices on a network.

4. Network Adopter:

Network adopter or network interface card (NIC) is a circuit board along with the components essential for sending and receiving data. It is plugged into one of the obtainable slots on the Pc and transmission cable is attached to the connector on the NIC.

5. Resources:

Anything obtainable to a client on the network is considered as a resource .Printers, fax, data devices and other network devices and information are resources.

6. User:

Any person that uses a client to access resources on the network.

7. Protocols:

These are written rules utilized for communications. They are the languages which computers use to communicate to each other on a network.

Advantages of Computer Network:

1) Networks permit data transmission among far areas also in local areas.

2) Networks permits different users share the processing characteristics of distinct computers.

3) Network permits users to share common set of data files and software stored in a main system.

4) Network permits users to share common hardware resources such like, fax machines, printers, modem etc.

5) The cost of computing is decreased to each user as compared to the development and maintain of each of the single computer system.

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