Sunday 11 May 2014

Computer Studies Made Simple : Devices used to connect networks of computers

Devices used to connect networks of computers:

Different devices to connect networks of computer are as follows:

1.Router

2.Gateway

3.Bridges

Router:

A router is a device that connects multiple networks that’s use similar or different protocols.

It manages the best route between any two communication networks.

It consists of hardware and software.

The hardware canbe a network server or a separate computer.

The software includes operating system and routing protocol.

Routers are used when several networks are connected together.

They can connect networks of different countries.

They transfer data in less time.

Gateway:

A gateway is a device that connects two or more networks with different types of protocols.

Two different type of networks require a gateway to communicate with each other.

It is an intelligent device as it converts data according to the protocol.

For example,the computers on a LAN require gateway to access the internet.

Bridges:

A bridge is a device that connects two network segments.

It is used to connect similar types of networks.

When a bridge receives a signal,it determines the segment where the signal should be sent.

It reads the addresses of sending and receiving computers.

If both the computers are in the same segment,bridge doesnot pass the signal to the other segment.

It reduces network traffic and increases network performance.  


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