One will understand how the Internet evolved and what it is today.

Instructions: Explain the evolution of Internet. Points willinclude:


In 1969 people in colleges and governments were just learninghow to use computers to solve problems. They used simple wordprocessors to write down what they learned and store it in theircomputers, but there were no daily updated libraries wherepeople could go to read what other people had just written and add to it.
Someone who worked for the Defense Advanced ResearchProjects Agency came up with the idea that several computerscould be linked together by telephone wires so they could "talk"to one another. A note that was written on one computer couldimmediately be sent to all the other computers. So they wiredfour computers together in a group. They called that group ofcomputers a network. The network's name was DARPANET,after the first letters of the name of the agency with NET(meaning network here) added to the end.
Soon the D was dropped and it was called ARPANET.ARPANET grew and grew over time, adding more and morecomputers over phone wires. The military research peoplethought they would be better off having their own private networkso they created the MILNET network.
The idea of networks caught on, and in 1984 another governmentagency, the National Science Foundation, started the NSFNETnetwork, which linked together five supercomputer centres andmade the information available to any school that needed it.
Anyone who entered a network was connected to at least one ofthe supercomputer centres. That supercomputer gave themaccess to all the other computers on the network - even to thoseplaces that were hooked into the network through another gateway.
Think of gateways as doors that let you go inside the housewhere a supercomputer lives. Once you are in the house, youcan pick up the supercomputer's telephone and call anyone elsewho has a computer hooked up to a telephone.
NSFNET became very popular. More computers and more wireshad to be added because everyone in schools and governmentwanted to get onto the network. Instead of just adding morecomputers into the first network of supercomputers, they addedmore networks and wired all the networks together. They calledall these interconnected networks an Inter-Net-Network.
Today we call it the Internet. Because lots of people now havetheir own personal computers, the Internet is even more popular.In the last 1 0 years it has grown from about 5,000 users to morethan 30 million today - with thousands of new computer userscoming online every month.

What Is a Computer?


A computer is an electronic machine that stores information, processes (does something with) that information, and displays the information on the monitor so that you can see it.





The CPU




The CPU (Central Processing Unit) is the brain of your computer.

Just like your brain, the CPU stores information, gets the information when it needs it, uses the information, and then puts it back until it needs it again.







The Monitor




The computer uses the monitor to communicate with you.

It uses the monitor to show you the information that it processes.







The Keyboard



The keyboard lets you tell the computer what to do.

You can use the keyboard to type information into the computer just like you do with a typewriter.


You can also use the keyboard to give the computer commands. For example, the animation shows how you can press the Delete key to delete information from the computer.








The Mouse



The mouse is the other way that you tell the computer what to do.


The animation shows you how you can move the mouse around on its pad to move the mouse pointer around on the screen.


You can position the mouse pointer on an icon, for example, the Internet Explorer icon, and click on it to tell the computer to open the Internet Explorer program.


When you position the mouse pointer on something, it's called pointing. "Point and click" is a phrase you will see often in computer lessons.






If you want to know more about the Computer (pc)

You need more? Continue from
here
and you will enjoy visiting this site a great deal.

Playing:
Having fun and playing games can stretch your imagination. Itopens up new ways of looking at the world.


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There are three basic ways to communicate on the Internet:

e-mail
mailing lists
group chatting.

E-mail:
This way we communicate personally with another person.

Chatting:
This way you call someone through the Internet and "talk" to themthe way you do on the phone, only you're writing and reading onyour computer rather than talking and listening with a phone in yourhand.

There are also "chat groups" where many people can be talking atthe same time. Chat groups can be a little confusing becauseseveral people may try to talk at one time. But there are rules forchatting which help this out.

Mailing Lists:
There are mailing lists that you can subscribe to just as you wouldsubscribe to a favourite magazine. Some of these lists havehundreds of people subscribing. When you write a letter to sucha group everyone on the list gets a copy of your letter. And you geta copy in your e-mail of every letter written to the list, too.

Mailing lists are usually handled by a Listserver, a special programthat automatically sorts the incoming messages and then sendsthem out to all the current list subscribers. Be careful about howmany lists you subscribe to - or you may end up with hundreds ofletters everyday.

When mailing lists get really popular, they often become Usenetnewsgroups. With newsgroups you subscribe to the group, butinstead of hundreds of e-mail letters, you get a list of headers fromthe articles that have been posted since the last time you checked.This way you can choose to read only those articles that interestyou. Think of newsgroups as bulletin boards where people aretacking up new notes and replying to old ones.

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Lesson 2: What can I do on the Internet?
LEARNING OBJECTIVE:
Students will learn what they can do on the Internet by being introducedto mail, chat, mailing lists, listservers and Usenet newsgroups.
Instructions: Explain that Internet is a tool that can help you in five different ways:

Communicating:
With e-mail and chat groups you will be able to talk to kids andgrownups all over the world. You may find a key pal in Paris or talkto a scientist at the South Pole. By talking and listening you arecommunicating with people from different places with differentways of looking at life!


Exploring:
The Internet connects you to the rest of the world and lets youexplore places and ideas online. You are able to visit other citiesand countries through your computer. You can actually tourthrough the famous museums in Europe, or even go on a voyageto the planets and moons in our solar system.


Finding:
Everything is connected to everything else on the Internet. So startanywhere, and you can find just about anything you want to find.It might be the definition to a word, or some historical facts for yourhomework assignment.


Learning:
There are two ways you will learn while surfing the Net. One wayis when you go searching for something you want to know about,like who invented the bicycle. The other way is finding somethingnew and unexpected by accident. "Serendipitous" learninghappens all the time on the Internet. And it is fun!



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