Lesson video

Hi, I'm Allen Heard.

This is lesson five of six, and this one is all about internet services.

You will need a pen and some paper for this lesson or something to write with and something to write on.

Turn off all notifications on mobile phones and remove any distractions that are nearby.

Pause the video until you get settled, and then we can get started.

Okay, in this lesson we'll describe internet services and explain how they are provided.

We'll explain the term connectivity, and we'll talk about the difference between the World Wide Web and the internet.

First, I'd like you to have a think about a question.

Are the internet on the World Wide Web the same? So hopefully you've got a pen and paper, pause the video, write down what you think, and resume when you're ready.

So the World Wide Web and the internet are not the same thing.

The World Wide Web is part of the internet, which is all the pages and links that you see on websites that you can see and click on.

The internet is a vast network of computers, all connected together.

The internet was originally created by the United States military in the 60s, originally called ARPANET.

They wanted some kind of system where information could be passed on in the event of a nuclear attack or a catastrophe.

And the system could run even if some parts of the system were destroyed.

Data was sent along multiple routes and reconstructed at their destination.

The World Wide Web on the other hand is part of the internet.

This was invented in 1989 by an English computer scientist called Sir Tim Berners-Lee.

Other internet services you may have heard of, you've got the World Wide Web, which we've just mentioned.

We've got email, messaging, online gaming, got VoIP, which is voice over IP for audio calls, the Internet of Things, and media streaming.

So the most familiar one there for you is probably internet services, is email, that allows people who have an email address to message someone else with an email address, so send electronic messages.

Is delivered almost instantaneously over great distances, and you can even attach files to an email, and email multiple people at the same time.

In 2018 there was 281 billion emails that were sent and received every day.

And just as with regular mail, you do get some emails that you don't necessarily want.

So the equivalent of junk mail, and this junk mail in email terms is called spam.

So it's the same as the mail that pops through your door that you neither want nor need, but it pops through in your inbox anyway.

Here's a question for you to think about, you can pause the video until you've had a think and maybe written an answer down.

What percentage of emails sent everyday are spam? Okay, well it's a staggering 56% of all emails are spam.

That's 140.

5 billion a day, or over 16,000 per second.

Okay, the next day internet service you saw on that list was VoIP.

It stands for Voice over Internet Protocol.

It allows packets of data in the form of audio and video messages, calls, to be sent over the internet.

It's much cheaper than using landline calls for instance, and you can get multiple people on the call at the same time.

And there are many popular apps that use VoIP to make internet calls.

So you've got a task to do now.

This is task one called Match-up.

I'd like you to use the worksheet and match the term to the definition or statement by maybe drawing a line between them if you've got it printed out, if not, you can just write them down and join them up as to which one you think matches.

You can pause the video and complete the task.

Okay, how did you get along? Well, the term VoIP as we just mentioned is Voice over Internet Protocol and it allows voice data to be sent over the internet.

Spam is just the emails that are unwanted.

Internet service describes a number of activities that are provided over the internet including VoIP, and the World Wide Web.

Tim Berners-Lee, if you remember, was the inventor of the World Wide Web.

The World Wide Web is part of the internet that contains websites and web pages.

And the internet is a vast network of computers, all connected together.

Hope you got all those right.

Okay, let's look at the next service where we're talking about on that list.

It's the Internet of Things.

You may have come across this, you may not have.

It just means everyday things and connecting them to the internet.

So connectivity is the key factor.

It allows the advantages of the internet to go beyond computers and smartphones.

So as far as connectivity is concerned, you can have things that control lighting and heating in your home.

You may have a light sensor that when it gets dark, it puts the blind down.

And when it gets light, the blind automatically goes up with a motor in some way.

You can have CCTV cameras connected to your home for security.

So if you're away on holiday, you could remotely look through an app on your mobile phone and see the cameras that are in your house or outside your house and check your house is safe.

And it also allows you to secure your house without the need for a key.

But again, all these things, the Internet of Things, they all need to be connected to the internet through your home router, and then that way, whenever you need to access them through a device, you can do so.

So there's a task for you, a short task called Smart home.

Using the worksheet, you've got to match the descriptions of the Internet of Things to the icons that are shown.

You can pause the video and complete the task.

How did you get along with that task? Well, number one, that's got a key on it.

So that one allows you to secure your house without needing a key.

Number two is the wireless icon.

So that allows you to set up your devices on your wireless network.

Three was the CCTV camera to remotely check your home from your mobile phone.

Four allows you to set the temperature of your house remotely.

So it's getting a little bit cold and you're out, and you want the house to be nice and warm when you come home, you can set the heating.

Number five was the sense of level of light, so that the blinds can pop down if it gets dark.

And number six, you can control the lighting as well.

So if you're laid in bed and the light is on, instead of getting out of bed to turn the lights off, you could just talk to your smart speaker if you've got one, send it a signal to turn the lights off, or you could just click it on your mobile phone and that would turn that off too.

So with the Internet of Things there are a couple of concerns.

The first one is privacy.

They collect and share information about you with or without your knowledge.

So things like microphones and cameras and GPS location.

Companies may eventually be able to learn everything about you.

So where you go on certain days of the week, what times you in your house, what times you not in the house.

Alongside that comes a security.

So for instance, these devices could be hacked.

For instance opening a car door remotely when you're not there or at home, when you're not there.

It's got the potential to make our life much easier, but privacy must be protected and it must be secure.

Obviously with having things like microphones and cameras in your house you wouldn't want to be hacked into and somebody effectively spying on you.

So making sure that everything is secure and you've got strong passwords on your devices for a start is a good start.

That's the end of this lesson.

I hope you've enjoyed it.

There is a quiz to complete.

So don't forget to complete the quiz to assess your learning for this lesson.

You may have also noticed there are some extra slides on the worksheet.

These are just information about an Internet Minute, which will be useful for you to look at.

We'd love you to share your work with Oak National.

So if you'd like to, please ask your parent or carer to share your work on Instagram, Facebook, or Twitter.

Tagging @OakNational and #LearnwithOak.

I'll see you next time.