NETWORKING 2 – NETWORK DEVICES – HUB – NIC CARD – THE SWITCH – THE ROUTER – THE MODEM (SS3 NOTES)

 

NETWORKING 2 

NETWORK DEVICES MEANING AND TYPES

 HUB – NIC CARD – THE SWITCH – THE ROUTER – 

THE MODEM

MEANING OF NETWORK DEVICES

These are the nodes of the network.  They are devices that aid connection and communication. 

Common network devices are:

1. The hub

2. The network interface card

3. The switch

4. The router

5. The modem

6. The Bridge

1. The Hub: This is a layer one device used to connect many computers within a network.  One broadcast domain, one collision domain.

2. The network interface (NIC) card: This enables and controls the sending and receiving of data between the computers in a network.

3. The Switch: This is an intelligent layer of networking device, that forwards data based on MAC (Media Access Control) address. Forward directly to the destination. 

4. The Router: This connects multiple networks and determines the fastest available path to send packets of data to their destination.

5. The Modem(Modulator-Demodulator) : – allows the computer to transmit data over analog telephone lines.

6. The Bridge: A bridge allows different networks to communicate with each other. However, in all connections with another network, the data packets that pass between the networks must be in the same format.

CLASS ACTIVITIES

   1. Explain any three (3) network devices