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Networking lesson 4
Networking lesson 4
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Slide 1:
Tekstslide
Computing
Upper Secondary (Key Stage 4)
Lower Secondary (Key Stage 3)
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18 slides
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interactieve quizzen
en
tekstslides
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Lesduur is:
50 min
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Networking lesson 4
Slide 1 - Tekstslide
Do now: What is the internet?
What can it be used for (give two examples)?
Slide 2 - Open vraag
Lesson 4: The internet
Conquer:
Define what the internet is.
Aspire:
Explain how data travels between computers across the internet
Slide 3 - Tekstslide
The internet explained
Watch the video:
Click here
Whilst watching, keep thinking about the starter questions.
What is the internet?
What do we use it for?
Slide 4 - Tekstslide
The internet explained
The internet is a worldwide network of computers.
It is the physical hardware, i.e. the cables, the routers, and other pieces of hardware used to connect devices together.
Any device connected to the internet is part of this network, for example:
Laptops
Games consoles
PCs
Tablets
Mobile phones
Slide 5 - Tekstslide
Who owns the internet
A
The government
B
No one
C
Vinton Gray
D
Google
Slide 6 - Quizvraag
Which of the following is NOT an internet activity?
A
Playing online games
B
Checking Instagram
C
Sending an email to a friend
D
Creating a local Microsoft PowerPoint presentation
Slide 7 - Quizvraag
What is the internet?
A
A set of rules to allow communication
B
A worldwide network of computers
C
A gateway on a network
D
A single network
Slide 8 - Quizvraag
Data transmission across continents
We now know that the internet is a global network of networks.
Slide 9 - Tekstslide
How could we connect
networks together to
different countries?
Slide 10 - Woordweb
We use undersea cables.
Name 2 countries that are connected by ‘Amitie’. How long is the cable?
Click here
http://www.submarinecablemap.com
Slide 11 - Open vraag
Interesting facts
The first oceanic cable was laid in 1851 to connect telephones.
99% of internet data is transmitted through cables under the oceans
Oceanic cables can be damaged by anchors, trawling fishing nets, and even shark bites!
Slide 12 - Tekstslide
IP Address
To send data via these cables we need somwhere to send it.
An IP address is made up of 4 groups of numbers between 0 and 255, each separated by a full stop.
These are unique for every device on the internet.
Slide 13 - Tekstslide
IP Address
An IP address is just like your house address, except instead of receiving letters you receive data to your device.
Example:
192.168.5.43
255.54.2.27
Slide 14 - Tekstslide
You can find your own IP using google.
Search "What is my IP" into google
Enter it below.
Slide 15 - Open vraag
Which of the following best describes the structure of an IP address?
A
4 numbers between 0 and 100, separated by dots
B
4 numbers between 0 and 255, separated by dots
C
3 numbers between 0 and 255, separated by dots
D
4 numbers between 0 and 255, separated by dashes
Slide 16 - Quizvraag
When was the first undersea cable placed?
A
1999
B
1951
C
1899
D
1851
Slide 17 - Quizvraag
Extension
1. Open
PowerPoint
2. Rename your PowerPoint to 'The Internet'
3. Make a PowerPoint about the history of the internet and the key people involved in developing it.
Slide 18 - Tekstslide
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