L1_Networks and protocols

L1_Networks and protocols

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Lesson objectives

In this lesson you will...

• Define what a computer network is​

• Explain how data is transmitted between computers across networks​

• Define ‘protocol’ and provide examples of non-networking protocols

Open Ended

Starter question: How many devices (such as phones, computers, laptops, Alexa) are connected to the internet?

(The answer will be revealed at the end of the lesson)

Historic communication methods

The following slides are a multi-choice questions on historic forms of communications. Can you match the name with the image?

Multiple Choice

What form of communication is shown in the image?

• Email

  (1961)

• Carrier pigeon

  (1167)

• Telephone (1876)

• Semaphore (1791)

• Telegram

  (1837)

Multiple Choice

What form of communication is shown in the image?

• Email

  (1961)

• Carrier pigeon

  (1167)

• Telephone (1876)

• Semaphore (1791)

• Telegram

  (1837)

Multiple Choice

What form of communication is shown in the image?

• Email

  (1961)

• Carrier pigeon

  (1167)

• Telephone (1876)

• Semaphore (1791)

• Telegram

  (1837)

Multiple Choice

What form of communication is shown in the image?

• Email

  (1961)

• Carrier pigeon

  (1167)

• Telephone (1876)

• Semaphore (1791)

• Telegram

  (1837)

Multiple Choice

What form of communication is shown in the image?

• Email

  (1961)

• Carrier pigeon

  (1167)

• Telephone (1876)

• Semaphore (1791)

• Telegram

  (1837)

Open Ended

What is a computer network? Write down some key words that you would use to describe a computer network.

(You can research your answer online)

Open Ended

What common daily activities do you think use computer networks?

Open Ended

Imagine that you needed to send a message from the UK to Australia but NO COMPUTER NETWORK exists.

1. What methods would you use?

2.What information would you need?

3. Would anyone be involved in relaying the message?

Open Ended

Imagine that you needed to send a message from the UK to Australia and COMPUTER NETWORKS DO EXIST

1. What methods would you use?

2. What information would you need?

3. Would anyone be involved in relaying the message?

Multiple Choice

In which culture do people use the bowing to greet each other?

• New Zealand

• Japan

• France

• Great Britain

Multiple Choice

In which culture do people use rubbing noses to greet each other?

• Inuit

• China

• England

• Scotland

Multiple Choice

In which culture do people stick their tongues out to greet each other!

• American

• Tibetan

• Mongolian

• Spanish

Open Ended

What rules (protocols) exist for an email address?

Open Ended

What parts of a web address show rules (protocols) being used?

Open Ended

How devices are connected to the internet?