1.4 Networking Devices

 

1.4 Networking Devices

 

Networking devices are hardware devices used to connect computers and other devices in a network. They help establish communication, manage the flow of data, and enable users to share resources such as files, printers, and Internet connections efficiently.

 

The common networking devices are: Repeater , Hub , Switch , Bridge , Router

 

1. Repeater

 

A Repeater is a networking device that receives weak signals and regenerates them to their original strength, and retransmits them to the next device.

It makes it possible for long-distance data transfer. So, it boosts the data signals that are received from the network.

 

2. Hub

 

A Hub is a basic networking device with multiple ports that connects several computers in a star topology. When it receives data from one device, it broadcasts the data to every connected device regardless of the intended destination.

 

It is simple, easier to install and low cost as compared to other devices.

It can receive or send information between the computers. Nowadays, hub is replaced by switch.

 

3. Switch

 

A Switch is an network connectivity device that connects multiple computers and forwards data only to the intended destination device. It makes communication faster, more secure, and more efficient than a hub.

 

How It Works

• A switch receives data from a computer.
• It checks the destination MAC address.
• It identifies the correct receiving device.
• It sends the data only to that specific device instead of broadcasting it to all devices.

 

4. Bridge

A Bridge is a networking device that connects two similar networks or LAN segments using the same communication protocol. It examines incoming data and decides whether to forward or discard it, helping reduce unnecessary network traffic.

 

 

5. Router

A Router is an intelligent networking device that connects two or more different wired or wireless networks. It forwards data packets using IP addresses and automatically selects the best possible path for data transmission.

 

How It Works

• A router receives incoming data packets.
• It examines the destination IP address.
• It determines the most efficient route.
• It forwards the data to the correct destination network.