Lesson video

Hello.

My name is Mrs. Holborow, and welcome to Computing.

I'm so pleased you decided to join me for the lesson today.

We're going to look at the differences between the internet and the World Wide Web and what common services are offered on the internet.

What do you use the internet for? Welcome to today's lesson from the unit, computer networks and data transmission.

This lesson is called the Internet, and by the end of today's lesson, you'll be able to explain the difference between the internet and the World Wide Web and describe some of the services the internet offers.

Shall we make a start? We will be exploring these keywords during today's lesson.

Internet.

Internet.

The global system of interconnected computer networks.

World Wide Web, WWW.

World Wide Web, WWW.

A service provided via the internet that allows us to access webpage and other shared files.

Webpage.

Webpage, a document viewed using a web browser.

There are two main parts to today's lesson.

We'll start by comparing the internet and the World Wide Web, and then we'll move on to explore the services offered over the internet.

Let's make a start by comparing the internet and the World Wide Web.

The internet is a global network of networks.

The internet uses lots of different connections to let us share information and communicate with people all over the world.

For example, super-fast fiber-optic cables use light to send data across land and even under the sea.

Satellites orbit the earth and use radio waves to connect networks in remote areas.

Microwave links beam data between towers.

Radio waves are used for Wi-Fi and mobile data, allowing your devices to connect wirelessly.

Any device connected to the internet is part of this global network.

So for example, a computer, a laptop, a smart speaker, a games console.

Any device connected to the internet can communicate with any other device connected to the internet anywhere in the world.

The World Wide Web, WWW is a collection of web pages.

Web pages are digital files that can contain text, images, videos, and links to other pages.

A website is a group of related webpage that are linked together, usually created and maintained by the same person or organisation.

Webpage are sent from computers called web servers over the internet.

The webpages can be viewed using a programme called a web browser.

Examples of include the Oak National Academy home page, a school's welcome page or a news article you read online.

A website is a group of webpage that are linked together.

Websites are usually created and maintained by the same person or organisation, so for example, the Oak National Academy website, a school's website, or a news organization's website.

Jun is saying, "The World Wide Web is just another name for the internet.

They are the same thing." Is Jun correct? No, Jun is wrong.

They are not the same thing.

The World Wide Web is a service that is accessed using the internet.

Time for a check.

What is the internet? Is it A, a set of rules to allow communication? Is it B, a global network of networks? Or C, websites, web pages and links? Pause the video whilst you have a think.

Did you select B? Well done.

The internet is a global network of networks.

Which of the following statements is true? A, the World Wide Web does not require the internet? B, the World Wide Web is a service provided over the internet? Or C, the World Wide Web is another name for the internet? Pause your video whilst you have a think.

That's right.

The correct answer is B.

The World Wide Web is a service provided over the internet.

We're now moving on to the first task of today's lesson, so well done.

You're doing a great job so far.

Describe the difference between the internet and the World Wide Web.

Pause the video whilst you complete the activity.

How did you get on? Here's a sample answer.

The internet is a global network of networks.

The World Wide Web is a service provided over the internet.

It allows you to access webpages using a web browser.

Did you have that response or something similar? If you need to make any changes, remember you can pause your video.

For the second task of Part A, complete the table.

Each description is either about the internet or the World Wide Web.

Can you label each one correctly? Pause your video whilst you complete the activity.

Okay, let's have a look at the answers.

A global network connecting millions of computers is the internet.

Use to load websites and videos in a browser, is the World Wide Web.

Uses webpage linked together by hyperlinks is the World Wide Web and works through cables, satellites, and wireless connections is the internet.

Did you get all of those correct? Remember to make any corrections if you need to.

You're doing a fantastic job so far, so well done.

We're going to move on to the second part of today's lesson, which is exploring the services offered over the internet.

Have you heard of these internet services before? Instant messaging, video streaming, online games, email, cloud storage, World Wide Web, voiceover, internet protocol or Voiceover IP.

How many do you use on a regular basis? Playing games online can use the internet or the World Wide Web.

Some games are hosted on a website.

Players will go to the website, they'll log in and they'll play the game in a browser.

Other games connect players directly to each other.

Players don't use a website.

Instead, the game uses the internet to allow them to play with friends.

Email allows people who have an email address to send and receive electronic messages.

Email is delivered almost instantly over great distances and is usually free.

You can attach files to emails and email multiple people at the same time.

Cloud storage lets you save your files and access them from anywhere using the internet.

The cloud is a term used to describe servers with a large storage capacity that are connected to the internet.

You may have used cloud storage if you back up the photos you've taken on your mobile device to an online system.

Voiceover IP is short for Voiceover Internet Protocol and it allows voice data to be sent via the internet.

It's cheaper than telephone calls and many people can be on the call at the same time.

Some video calling apps use Voiceover IP.

Time to check your understanding.

When you store a file in the cloud, where is it stored? A, on your own computer? B, in the sky? Or C, on a server connected to the internet? Pause your video whilst you have a think.

That's right C is the correct answer.

When you store a file in the cloud, it is stored on a server connected to the internet.

What is Voiceover IP used for? Is it A, storing large files via the internet? B, very important data that needs to be sent very quickly? Or C, voice calls over the internet? Pause your video whilst you have a think.

Did you select C? Well done.

Voiceover IP is used for voice calls over the internet.

We're now moving on to the next task of today's lesson, Task B.

For part one, write down as many activities as you can think of that require the internet.

How did you get on? How long was your list? Here is some sample answers.

Social media, instant messaging, email, video streaming, online gaming, researching information and shopping are all activities that may require the internet.

For part two, explain which of the activities you listed in part one can be done on the World Wide Web and which only require the internet? How did you get on? You're doing a great job so far, so well done.

Here's a sample answer.

You can use the World Wide Web to research information.

However, many of the other services can be accessed via a website or via the internet.

For example, you can send an email using a mail app on your phone, which is not part of the World Wide Web, but it's also possible to visit a website to check your email.

For part three, explain how you may use each service? The first one has been done as an example for you.

So for online games, you may play a video game on a team with your friends.

How did you get on? Let's have a look at some sample answers together.

So the first one had already been done for you, so let's have a look at Voiceover IP.

An example of how you might use the service is maybe to talk to a relative in the USA.

A standard telephone call may be expensive if you're trying to call outside the country, but using Voiceover IP would be cheaper.

The World Wide Web you may use to read some information about your favourite band.

Video streaming, you may watch a movie with a friend.

Cloud storage, you might store some photographs that you don't have space for on your phone.

And instant messaging, you may tell your friend where you plan to meet in the shopping centre at the weekend.

Don't worry if your examples don't match mine, but do take the time to make sure that you've completed the activity.

Okay, now time for the final part of Task B, and you're doing a great job, so well done.

Choose one of these services and imagine that this service did not exist and explain how people's lives may be different.

So you can choose from online gaming.

You can choose from Voiceover IP, the World Wide Web, video streaming, cloud storage, or instant messaging.

Pause your video whilst you complete the activity.

Okay, so I've taken the example of video streaming and I've said that if video streaming didn't exist, people wouldn't be able to search for a show or choose what to watch and when.

They would have to watch whatever is currently showing.

They wouldn't be able to use educational videos for homework or learning new things and they wouldn't be able to share their own content.

Only TV studios could broadcast information.

Okay, we've come to the end of today's lesson and you've done a fantastic job, so well done.

Let's summarise what we have learned.

The internet is a global network of networks that provides access to various services, including the World Wide Web.

The World Wide Web is a system of web pages that we access using the internet.

The internet offers many other services, such as email, instant messaging, cloud storage, and online games.

I hope you'll join me again soon.

Bye.