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Muhammad Hazwan

on 24 February 2014

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Transcript of THE INTERNET

What are the Standards of the G's ?
A term never widely used until 2G was available. This was the first generation of cell phone technology. Simple phone calls were all it was able to do.
The second generation of cell phone transmission. A few more features were added to the menu such as simple text messaging.
This generation set the standards for most of the wireless technology we have come to know and love. Web browsing, email, video downloading, picture sharing and other Smartphone technology were introduced in the third generation. 3G should be capable of handling around 2 Megabits per second.
The speed and standards of this technology of wireless needs to be at least 100 Megabits per second and up to 1 Gigabit per second to pass as 4G. It also needs to share the network resources to support more simultaneous connections on the cell.
Worldwide Interoperability for Microwave Access – should be capable of around 40 megabits per second with a range of 30 miles. It is one of the closest technologies to meet the standards of true 4G and as it develop should surpass the 100MB/second which is the 4G standard.

-The Internet now spans the world, connecting
billions of people in their everyday lives.

The Internet is one of the most important
changes that has happened to the way we live
and work in the last twenty years.
-It began life about 40 years ago, in an American military research agency called DARPA.
Its inventors could never have forseen how it would develop over time.

-Research and homework
-social network- facebook,twitter
- chatbox
-Shopping- buying online, check discount
-Leisure and entertaiment - games, music, reading online,video, television
-Exploring the world,japan,korea

What is the Internet?
But the Internet isn't just web pages.

2. The internet is made up of millions upon millions of small computer networks all brought together to form the vast "Inter-Network". That word never caught on, so it was shortened to the much easier-to-say "Internet".

-Always available
The Internet is aways available for you to use, 24 hours a day, 7 days a week, 365 days a year. You don't have to wait for it to open or wait for someone to make it available. It is just there, when you need it and for whatever you need.

Of course that does not mean every web site is always open. For instance it is common for bank web sites to shut down at midnight and open again at 7am. Overnight, they are updating and checking all the money transactions that have taken place over the last day.

-Easy to contact people
The Internet provides many ways to enable you to keep in contact with people at all hours of the day and night. From email, forums, chatrooms, telephone calls and video conferencing. You are almost spoilt for choice.

1. The internet is made up of millions upon millions of small computer networks all brought together to form the vast "Inter-Network". That word never caught on, so it was shortened to the much easier-to-say "Internet".
Instant Messaging
Chat Room
-The Internet enables you to look at sites about or written by people in other countries. You can look at photographs of where they live and read about their way of life.

File Transfer
News Groups
Peers To Peers Network
THE 2G, 3G, 4G – What are They?
Note that no-one 'owns' the Internet. This is because each part of it is made up of individual networks that someone has put together and then linked to the Internet.

G” stands for Generation
-Fast thing can be update just in couple minute
However, each network has to obey Internet standards in order to connect. For example IANA is an international group responsible for organising web addresses - every web address has to be unique.

- When you type a search term into a search engine, you won't just get a few results, you will get millions!
-THE one piece of information that you are after might be on page 345 of the results. There is very little chance that you are going to find it.

1G was not used to identify wireless technology until 2G, or the second generation, was released
It is important to understand that the Internet is not the same as the World Wide Web.
The Internet is to the World Wide Web as Europe is to France. One is the container, the other is an item within the container.

The world wide web (WWW or just 'the web') is part of the Internet but is much younger. The Internet is about 40 years old whilst the WWW is merely 20 years old.

The complete web is organised as millions of 'web sites'. Each web site is made up of one or more 'web pages'. Each page is made up of text, images or multimedia such as video and sound.

The World Wide Web (WWW)
DONT just believe what you read but investigate first.
- with the Internet, no one checks what has been written. The website that looks like it has all of the answers to your history homework might just be incorrect.

So the World Wide Web is actually made up of millions upon millions of individual web pages.

there is always the possibility that you will come across some sites that contain offensive or even illegal material. Use the 'safe search' option in your favourite search engine.

Web sites, pages and browsers

Web sites are hosted on dedicated computers known as 'web servers'. These machines will send a web page to your browser when you request it.

There are many different browsers available, such as Firefox, Internet Explorer, Opera, Safari and so on. But they all do the same job - namely to display a web page delivered from a web server.

Each web page has an address (URL) that starts with http:

There are many different browsers available, such as Firefox, Internet Explorer, Opera, Safari and so on. But they all do the same job - namely to display a web page delivered from a web server.

- There are also web sites set up to steal information known as phishing sites.
- Clicking on the link takes you to the fake login page and you innocently enter your login details. Next thing you know, your account has been hacked. Beware of any links in an email!.

This type of bullying is every bit as harmful and hurtful as if done in person but it is much harder to tackle and stop.

There has been a worrying increase in the number of people who are becoming 'addicted' to the internet. Every spare moment they have is spent online, some even go without proper sleep so that they don't have to log off. There have been reports of families breaking up and people losing their jobs because of this problem.

This is very important, as it is what binds the World Wide Web together. The http is a 'protocol', which is a fancy word for a communication standard. If two computers share the same 'protocol', then they can share information. The http protocol is the one used for the world wide web.

The internet is more than just the World Wide Web, and those other parts use different protocols. For example for exchanging files between internet computers use the 'ftp' protocol.

Running out of web addres
-Every web page has to have an unique address.
And 20 years ago a scheme was developed that could provide that service (it is called IPv4). But it was never dreamt that the web would be so successful. Now we are running out of addresses. As of November 2010, we are down to the last 3% of available addresses.

Did you know that search engines only index a small fraction of the internet? There is a vast area called the 'Deep Web' that search engines have not found as yet. And it is getting bigger. The Deep Web consists of many things: database driven web sites, social network pages and so on.

You know the scene: You want to look at a video clip and you get endless 'buffering' messages. The fact is, the connection speed is often too slow and the problem lies mainly in the 'last mile' to your home.
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