Networking lesson 2

• Computing
• Lower Secondary (Key Stage 3)

Networking lesson 2

Do Now:
Question 1: What is a computer network?
Question 2: Identify 2 protocols we follow when creating an email?

Extension:

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https://forms.office.com/e/z4ELN8A1ee

Lesson 2: Networking hardware 

• Conquer: List examples of the hardware necessary for connecting devices to networks

• Aspire: Explain how these pieces of hardware interact to form a network.  

Network cables

• To connect together different devices, you need cables.
  

• They have plastic plugs that connect into sockets on devices.
  

• The cable is made up of a number of copper wires.
  

Build a network with wires: scenario 1 

• A small company has 4 people working for it with 4 computers.

• All computers now need to be networked together using cables so that they can communicate and access each other’s files.

 

Build a network: scenario 1 answer

• This illustration shows the large number of connections you could have drawn.
  

Each computer is now connected to all the others forming our network.

 

Hub

• A hub connects a number of computers together.
  

• Ports allow cables to be plugged in from each connected computer.
  

 

Build a network: hubs 

• The company wishes to install a hub to reduce the overall number of cables used to network the 4 computers.
  

• Link the pc’s together with the least amount of cables required using your hub.
  

 

Build a network: scenario 2

• The hub becomes the central device in the network.
  

• All messages between the computers will pass through the hub.

 

Servers

• Some networks will have a server.
  

• A server is a powerful computer which provides services.
  

• There are many different types of server, for example, a file server which stores files (i.e. text, images, sound, or video) that can be accessed by all devices on the network.
  

 

Router

• A router is used when we want to connect 2 networks together across distances. 

• A router forwards messages from one network to another. It acts as a gateway.

• A common job of a router is to join a home network to the internet via an internet service provider (ISP).

 

Networking hardware quiz!

A router acts as a gateway to the internet

1. True
2. False

You need a hub to connect a network to the internet.

1. True
2. False

What material is used to make the wires for network cables

1. Gold
2. Iron
3. Copper
4. Brass

There is only one type of server.

1. True
2. False

Which of the following is not a protocol for a web address

1. Must start with ‘http://’ followed by ‘www’.
2. You must include dots to seperate.
3. The address mus t be unique.
4. An ‘@’ symbol must be used.

Next lesson

Learn about the term ‘bandwidth’, and the difference between wired and wireless connections.